关于Oracle数据库19c中的关键字和保留字的说明

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### 关于Oracle数据库中的关键字和保留字的说明 ###

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官方文档节选：

You **cannot use Oracle SQL reserved words** as nonquoted identifiers. Quoted identifiers can be reserved words, although this is not recommended.

Oracle SQL keywords are not reserved. However, Oracle uses them internally in specific ways. Therefore, if you use these words as names for objects and object parts, then your SQL statements may be more difficult to read and may lead to unpredictable results.

You can use **keywords** as ordinary user-defined identifiers,but it is **not recommended**.

(中文释义):

不能使用保留字作为用户定义的变量。但是当加上双引号就可以，但是不推存。

Oracle中的关键字并没有进行保留处理，但是，Oracle在内部以特定的方式使用了它们。因此，如果您使用这些词作为对象和对象部分的名称，那么您的SQL语句可能更难读取，并可能导致不可预测的结果。

关键字就可以作为用户定义的变量，但是不推存。

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为了避免在Oracle表格使用过程中出现问题，我们在数据库表的设计中应当**避开保留字和避免关键字**，这也是我们专门整理出《关于Oracle数据库中的关键字和保留字的说明》文件的原因。

### Oracle数据库中的关键字和保留字： ###

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如何区分保留字和关键字？Oracle中可以通过查询v$reserved\_words表得知。

但如果你只是想要单纯的查看字段或名称能不能使用,建议你进入所使用的Oracle数据库来一次SQL查询,SQL语句如下:

SELECT * FROM v$reserved_words m WHERE m.KEYWORD='你想要查询的对象'

如果最后查询的结果为空，恭喜你，该对象可以使用；

下来具体的罗列一下关键字和保留字。

#### 1. 保留字(**cannot** use)： ####

查询保留字所用SQL语句：

SELECT * FROM v$reserved_words m WHERE m.RESERVED='Y'

如果你使用该SQL语句进入数据库中进行查询,你会发现还有一些特殊字符 也属于保留字,但我们的命名规范从一开始就禁止了使用特殊字符。

<table> 
 <thead> 
 <tr> 
 <th>Begins with:</th> 
 <th>Reserved Words</th> 
 </tr> 
 </thead> 
 <tbody> 
 <tr> 
 <td>A</td> 
 <td>ALL, ALTER, AND, ANY, AS, ASC</td> 
 </tr> 
 <tr> 
 <td>B</td> 
 <td>BETWEEN, BY</td> 
 </tr> 
 <tr> 
 <td>C</td> 
 <td>CHAR, CHECK, CLUSTER, COMPRESS, CONNECT, CREATE</td> 
 </tr> 
 <tr> 
 <td>D</td> 
 <td>DATE, DECIMAL, DEFAULT, DELETE, DESC, DISTINCT, DROP</td> 
 </tr> 
 <tr> 
 <td>E</td> 
 <td>ELSE, EXCLUSIVE, EXISTS</td> 
 </tr> 
 <tr> 
 <td>F</td> 
 <td>FLOAT, FOR, FROM,</td> 
 </tr> 
 <tr> 
 <td>G</td> 
 <td>GRANT, GROUP</td> 
 </tr> 
 <tr> 
 <td>H</td> 
 <td>HAVING</td> 
 </tr> 
 <tr> 
 <td>I</td> 
 <td>IDENTIFIED, IN, INDEX, INSERT, INTEGER, INTERSECT, INTO, IS</td> 
 </tr> 
 <tr> 
 <td>L</td> 
 <td>LIKE, LOCK, LONG</td> 
 </tr> 
 <tr> 
 <td>M</td> 
 <td>MINUS, MODE</td> 
 </tr> 
 <tr> 
 <td>N</td> 
 <td>NOCOMPRESS, NOT, NOWAIT, NULL, NUMBER</td> 
 </tr> 
 <tr> 
 <td>O</td> 
 <td>OF, ON, OPTION, OR, ORDER</td> 
 </tr> 
 <tr> 
 <td>P</td> 
 <td>PCTFREE, PRIOR, PUBLIC</td> 
 </tr> 
 <tr> 
 <td>R</td> 
 <td>RAW, RENAME, RESOURCE, REVOKE</td> 
 </tr> 
 <tr> 
 <td>S</td> 
 <td>SELECT, SET, SHARE, SIZE, SMALLINT, START, SYNONYM</td> 
 </tr> 
 <tr> 
 <td>T</td> 
 <td>TABLE, THEN, TO, TRIGGER</td> 
 </tr> 
 <tr> 
 <td>U</td> 
 <td>UNION, UNIQUE, UPDATE</td> 
 </tr> 
 <tr> 
 <td>V</td> 
 <td>VALUES, VARCHAR, VARCHAR2, VIEW</td> 
 </tr> 
 <tr> 
 <td>W</td> 
 <td>WHERE, WITH</td> 
 </tr> 
 </tbody> 
</table>

#### 2. 关键字(not recommended): ####

查询关键字所用SQL语句：

SELECT * FROM v$reserved_words m WHERE m.RESERVED='N'

<table> 
 <thead> 
 <tr> 
 <th>Begins with:</th> 
 <th>Keywords</th> 
 </tr> 
 </thead> 
 <tbody> 
 <tr> 
 <td>A</td> 
 <td>A, ABORT, ABS, ABSENT, ACCESS, ACCESSED, ACCOUNT, ACL, ACOS, ACROSS, ACTION, ACTIONS, ACTIVATE, ACTIVE, ACTIVE_COMPONENT, ACTIVE_DATA, ACTIVE_FUNCTION, ACTIVE_TAG, ACTIVITY, ADAPTIVE_PLAN, ADD, ADD_COLUMN, ADD_GROUP, ADD_MONTHS, ADG_REDIRECT_DML, ADG_REDIRECT_PLSQL, ADJ_DATE, ADMIN, ADMINISTER, ADMINISTRATOR, ADVANCED, ADVISE, ADVISOR, AFD_DISKSTRING, AFFINITY, AFTER, AGGREGATE, AGGREGATES, ALGORITHM, ALIAS, ALLOCATE, ALLOW, ALL_ROWS, ALTERNATE, ALWAYS, ANALYTIC, ANALYZE, ANCESTOR, ANCILLARY, AND_EQUAL, ANOMALY, ANSI_REARCH, ANSWER_QUERY_USING_STATS, ANTIJOIN, ANYSCHEMA, ANY_VALUE, APPEND, APPENDCHILDXML, APPEND_VALUES, APPLICATION, APPLY, APPROX_COUNT, APPROX_COUNT_DISTINCT, APPROX_COUNT_DISTINCT_AGG, APPROX_COUNT_DISTINCT_DETAIL, APPROX_MEDIAN, APPROX_PERCENTILE, APPROX_PERCENTILE_AGG, APPROX_PERCENTILE_DETAIL, APPROX_RANK, APPROX_SUM, ARCHIVAL, ARCHIVE, ARCHIVED, ARCHIVELOG, ARRAY, ARRAYS, ASCII, ASCIISTR, ASIN, ASIS, ASSEMBLY, ASSIGN, ASSOCIATE, ASYNC, ASYNCHRONOUS, AS_JSON, AT, ATAN, ATAN2, ATTRIBUTE, ATTRIBUTES, AUDIT, AUTHENTICATED, AUTHENTICATION, AUTHID, AUTHORIZATION, AUTO, AUTOALLOCATE, AUTOEXTEND, AUTOMATIC, AUTO_LOGIN, AUTO_REOPTIMIZE, AVAILABILITY, AVCACHE_OP, AVERAGE_RANK, AVG, AVMDX_OP, AVRO, AV_CACHE, AW</td> 
 </tr> 
 <tr> 
 <td>B</td> 
 <td>BACKGROUND, BACKUP, BAND_JOIN, BASIC, BASICFILE, BATCH, BATCHSIZE, BATCH_TABLE_ACCESS_BY_ROWID, BECOME, BEFORE, BEGIN, BEGINNING, BEGIN_OUTLINE_DATA, BEHALF, BEQUEATH, BFILE, BFILENAME, BIGFILE, BINARY, BINARY_DOUBLE, BINARY_DOUBLE_INFINITY, BINARY_DOUBLE_NAN, BINARY_FLOAT, BINARY_FLOAT_INFINITY, BINARY_FLOAT_NAN, BINDING, BIND_AWARE, BIN_TO_NUM, BITAND, BITMAP, BITMAPS, BITMAP_AND, BITMAP_BIT_POSITION, BITMAP_BUCKET_NUMBER, BITMAP_CONSTRUCT_AGG, BITMAP_COUNT, BITMAP_OR_AGG, BITMAP_TREE, BITS, BLOB, BLOCK, BLOCKS, BLOCKSIZE, BLOCK_RANGE, BODY, BOTH, BOUND, BRANCH, BREADTH, BROADCAST, BSON, BUFFER, BUFFER_CACHE, BUFFER_POOL, BUILD, BULK, BUSHY_JOIN, BYPASS_RECURSIVE_CHECK, BYPASS_UJVC, BYTE</td> 
 </tr> 
 <tr> 
 <td>C</td> 
 <td>CACHE, CACHE_CB, CACHE_INSTANCES, CACHE_TEMP_TABLE, CACHING, CALCULATED, CALL, CALLBACK, CANCEL, CAPACITY, CAPTION, CARDINALITY, CASCADE, CASE, CAST, CATEGORY, CDB$DEFAULT, CDB_HTTP_HANDLER, CEIL, CELLMEMORY, CELL_FLASH_CACHE, CERTIFICATE, CFILE, CHAINED, CHANGE, CHANGE_DUPKEY_ERROR_INDEX, CHARACTER, CHARTOROWID, CHAR_CS, CHECKPOINT, CHECK_ACL_REWRITE, CHILD, CHOOSE, CHR, CHUNK, CLASS, CLASSIFICATION, CLASSIFIER, CLAUSE, CLEAN, CLEANUP, CLEAR, CLIENT, CLOB, CLONE, CLOSE, CLOSEST, CLOSE_CACHED_OPEN_CURSORS, CLUSTERING, CLUSTERING_FACTOR, CLUSTER_BY_ROWID, CLUSTER_DETAILS, CLUSTER_DISTANCE, CLUSTER_ID, CLUSTER_PROBABILITY, CLUSTER_SET, COALESCE, COALESCE_SQ, COARSE, COLD, COLLATE, COLLATION, COLLECT, COLUMN, COLUMNAR, COLUMNS, COLUMN_AUTHORIZATION_INDICATOR, COLUMN_AUTH_INDICATOR, COLUMN_STATS, COLUMN_VALUE, COMMENT, COMMIT, COMMITTED, COMMON, COMMON_DATA_MAP, COMPACT, COMPATIBILITY, COMPILE, COMPLETE, COMPLIANCE, COMPONENT, COMPONENTS, COMPOSE, COMPOSITE, COMPOSITE_LIMIT, COMPOUND, COMPUTATION, COMPUTE, CONCAT, CONDITION, CONDITIONAL, CONFIRM, CONFORMING, CONNECT_BY_CB_WHR_ONLY, CONNECT_BY_COMBINE_SW, CONNECT_BY_COST_BASED, CONNECT_BY_ELIM_DUPS, CONNECT_BY_FILTERING, CONNECT_BY_ISCYCLE, CONNECT_BY_ISLEAF, CONNECT_BY_ROOT, CONNECT_TIME, CONSIDER, CONSISTENT, CONST, CONSTANT, CONSTRAINT, CONSTRAINTS, CONTAINER, CONTAINERS, CONTAINERS_DEFAULT, CONTAINER_DATA, CONTAINER_DATA_ADMIT_NULL, CONTAINER_MAP, CONTAINER_MAP_OBJECT, CONTENT, CONTENTS, CONTEXT, CONTINUE, CONTROLFILE, CONVERSION, CONVERT, CON_DBID_TO_ID, CON_GUID_TO_ID, CON_ID, CON_ID_FILTER, CON_ID_TO_CON_NAME, CON_ID_TO_DBID, CON_NAME_TO_ID, CON_UID_TO_ID, COOKIE, COPY, CORR, CORRUPTION, CORRUPT_XID, CORRUPT_XID_ALL, CORR_K, CORR_S, COS, COSH, COST, COST_XML_QUERY_REWRITE, COUNT, COVAR_POP, COVAR_SAMP, CO_AUTH_IND, CPU_COSTING, CPU_COUNT, CPU_PER_CALL, CPU_PER_SESSION, CPU_TIME, CRASH, CREATE_FILE_DEST, CREATE_STORED_OUTLINES, CREATION, CREDENTIAL, CREDENTIALS, CRITICAL, CROSS, CROSSEDITION, CSCONVERT, CUBE, CUBE_AJ, CUBE_GB, CUBE_SJ, CUME_DIST, CUME_DISTM, CURRENT, CURRENTV, CURRENT_DATE, CURRENT_INSTANCE, CURRENT_SCHEMA, CURRENT_TIME, CURRENT_TIMESTAMP, CURRENT_USER, CURSOR, CURSOR_SHARING_EXACT, CURSOR_SPECIFIC_SEGMENT, CV, CYCLE</td> 
 </tr> 
 <tr> 
 <td>D</td> 
 <td>D, DANGLING, DATA, DATABASE, DATAFILE, DATAFILES, DATAMOVEMENT, DATAOBJNO, DATAOBJ_TO_MAT_PARTITION, DATAOBJ_TO_PARTITION, DATAPUMP, DATASTORE, DATA_LINK_DML, DATA_SECURITY_REWRITE_LIMIT, DATA_VALIDATE, DATE_MODE, DAY, DAYS, DBA, DBA_RECYCLEBIN, DBMS_STATS, DBSTR2UTF8, DBTIMEZONE, DB_ROLE_CHANGE, DB_UNIQUE_NAME, DB_VERSION, DDL, DEALLOCATE, DEBUG, DEBUGGER, DEC, DECLARE, DECODE, DECOMPOSE, DECOMPRESS, DECORRELATE, DECR, DECREMENT, DECRYPT, DEDUPLICATE, DEFAULTS, DEFAULT_COLLATION, DEFAULT_PDB_HINT, DEFERRABLE, DEFERRED, DEFINE, DEFINED, DEFINER, DEFINITION, DEGREE, DELAY, DELEGATE, DELETEXML, DELETE_ALL, DEMAND, DENSE_RANK, DENSE_RANKM, DEPENDENT, DEPTH, DEQUEUE, DEREF, DEREF_NO_REWRITE, DESCENDANT, DESCRIPTION, DESTROY, DETACHED, DETERMINED, DETERMINES, DETERMINISTIC, DG_GATHER_STATS, DICTIONARY, DIGEST, DIMENSION, DIMENSIONS, DIRECTORY, DIRECT_LOAD, DIRECT_PATH, DISABLE, DISABLE_ALL, DISABLE_CONTAINERS_DEFAULT, DISABLE_CONTAINER_MAP, DISABLE_PARALLEL_DML, DISABLE_PRESET, DISABLE_RPKE, DISALLOW, DISASSOCIATE, DISCARD, DISCONNECT, DISK, DISKGROUP, DISKS, DISMOUNT, DISTINGUISHED, DISTRIBUTE, DISTRIBUTED, DIST_AGG_PROLLUP_PUSHDOWN, DML, DML_UPDATE, DOCFIDELITY, DOCUMENT, DOMAIN_INDEX_FILTER, DOMAIN_INDEX_NO_SORT, DOMAIN_INDEX_SORT, DOUBLE, DOWNGRADE, DRIVING_SITE, DROP_COLUMN, DROP_GROUP, DST_UPGRADE_INSERT_CONV, DUMP, DUPLICATE, DUPLICATED, DV, DYNAMIC, DYNAMIC_SAMPLING, DYNAMIC_SAMPLING_EST_CDN</td> 
 </tr> 
 <tr> 
 <td>E</td> 
 <td>E, EACH, EDITION, EDITIONABLE, EDITIONING, EDITIONS, ELAPSED_TIME, ELEMENT, ELIMINATE_JOIN, ELIMINATE_OBY, ELIMINATE_OUTER_JOIN, ELIMINATE_SQ, ELIM_GROUPBY, EM, EMPTY, EMPTY_BLOB, EMPTY_CLOB, ENABLE, ENABLE_ALL, ENABLE_PARALLEL_DML, ENABLE_PRESET, ENCODE, ENCODING, ENCRYPT, ENCRYPTION, END, END_OUTLINE_DATA, ENFORCE, ENFORCED, ENQUEUE, ENTERPRISE, ENTITYESCAPING, ENTRY, EQUIPART, ERROR, ERRORS, ERROR_ARGUMENT, ERROR_ON_OVERLAP_TIME, ESCAPE, ESTIMATE, EVAL, EVALNAME, EVALUATE, EVALUATION, EVENTS, EVERY, EXCEPT, EXCEPTIONS, EXCHANGE, EXCLUDE, EXCLUDING, EXECUTE, EXEMPT, EXISTING, EXISTSNODE, EXP, EXPAND, , EXPAND_GSET_TO_UNION, EXPAND_TABLE, EXPIRE, EXPLAIN, EXPLOSION, EXPORT, EXPRESS, EXPR_CORR_CHECK, EXTEND, EXTENDED, EXTENDS, EXTENT, EXTENTS, EXTERNAL, EXTERNALLY, EXTRA, EXTRACT, EXTRACTCLOBXML, EXTRACTVALUE</td> 
 </tr> 
 <tr> 
 <td>F</td> 
 <td>FACILITY, FACT, FACTOR, FACTORIZE_JOIN, FAILED, FAILED_LOGIN_ATTEMPTS, FAILGROUP, FAILOVER, FAILURE, FALSE, FAMILY, FAR, FAST, FBTSCAN, FEATURE, FEATURE_COMPARE, FEATURE_DETAILS, FEATURE_ID, FEATURE_SET, FEATURE_VALUE, FEDERATION, FETCH, FILE, FILEGROUP, FILESYSTEM_LIKE_LOGGING, FILE_NAME_CONVERT, FILTER, FINAL, FINE, FINISH, FIRST, FIRSTM, FIRST_ROWS, FIRST_VALUE, FIXED_VIEW_DATA, FLAGGER, FLASHBACK, FLASH_CACHE, FLEX, FLOB, FLOOR, FLUSH, FOLDER, FOLLOWING, FOLLOWS, FORCE, FORCE_SPATIAL, FORCE_XML_QUERY_REWRITE, FOREIGN, FOREVER, FORMAT, FORWARD, FRAGMENT_NUMBER, FREE, FREELIST, FREELISTS, FREEPOOLS, FRESH, FRESH_MV, FROM_TZ, FTP, FULL, FULL_OUTER_JOIN_TO_OUTER, FUNCTION, FUNCTIONS</td> 
 </tr> 
 <tr> 
 <td>G</td> 
 <td>G, GATHER_OPTIMIZER_STATISTICS, GATHER_PLAN_STATISTICS, GBY_CONC_ROLLUP, GBY_PUSHDOWN, GENERATED, GET, GLOBAL, GLOBALLY, GLOBAL_NAME, GLOBAL_TOPIC_ENABLED, GRANTED, GRANULAR, GREATEST, GROUPING, GROUPING_ID, GROUPS, GROUP_BY, GROUP_ID, GUARANTEE, GUARANTEED, GUARD</td> 
 </tr> 
 <tr> 
 <td>H</td> 
 <td>H, HALF_YEARS, HASH, HASHKEYS, HASH_AJ, HASH_SJ, HEADER, HEAP, HELP, HEXTORAW, HEXTOREF, HIDDEN, HIDE, HIERARCHICAL, HIERARCHIES, HIERARCHY, HIER_ANCESTOR, HIER_CAPTION, HIER_CHILDREN, HIER_CHILD_COUNT, HIER_COLUMN, HIER_DEPTH, HIER_DESCRIPTION, HIER_HAS_CHILDREN, HIER_LAG, HIER_LEAD, HIER_LEVEL, HIER_MEMBER_NAME, HIER_MEMBER_UNIQUE_NAME, HIER_ORDER, HIER_PARENT, HIER_WINDOW, HIGH, HINTSET_BEGIN, HINTSET_END, HOST, HOT, HOUR, HOURS, HTTP, HWM_BROKERED, HYBRID</td> 
 </tr> 
 <tr> 
 <td>I</td> 
 <td>ID, IDENTIFIER, IDENTITY, IDGENERATORS, IDLE_TIME, IF, IGNORE, IGNORE_OPTIM_EMBEDDED_HINTS, IGNORE_ROW_ON_DUPKEY_INDEX, IGNORE_WHERE_CLAUSE, ILM, IMMEDIATE, IMPACT, IMPORT, INACTIVE, INACTIVE_ACCOUNT_TIME, INCLUDE, INCLUDES, INCLUDE_VERSION, INCLUDING, INCR, INCREMENT, INCREMENTAL, INDENT, INDEXED, INDEXES, INDEXING, INDEXTYPE, INDEXTYPES, INDEX_ASC, INDEX_COMBINE, INDEX_DESC, INDEX_FFS, INDEX_FILTER, INDEX_JOIN, INDEX_ROWS, INDEX_RRS, INDEX_RS, INDEX_RS_ASC, INDEX_RS_DESC, INDEX_SCAN, INDEX_SKIP_SCAN, INDEX_SS, INDEX_SS_ASC, INDEX_SS_DESC, INDEX_STATS, INDICATOR, INFINITE, INFORMATIONAL, INHERIT, INITCAP, INITIAL, INITIALIZED, INITIALLY, INITRANS, INLINE, INLINE_XMLTYPE_NT, INLINE_XT, INMEMORY, INMEMORY_PRUNING, INNER, INPLACE, INSENSITIVE, INSERTCHILDXML, INSERTCHILDXMLAFTER, INSERTCHILDXMLBEFORE, INSERTXMLAFTER, INSERTXMLBEFORE, INSTALL, INSTANCE, INSTANCES, INSTANTIABLE, INSTANTLY, INSTEAD, INSTR, INSTR2, INSTR4, INSTRB, INSTRC, INT, INTERLEAVED, INTERMEDIATE, INTERNAL_CONVERT, INTERNAL_USE, INTERPRETED, INTERVAL, INTRA_CDB, INVALIDATE, INVALIDATION, INVISIBLE, IN_MEMORY_METADATA, IN_XQUERY, IOSEEKTIM, IOTFRSPEED, IO_LOGICAL, IO_MEGABYTES, IO_REQUESTS, ISOLATE, ISOLATION, ISOLATION_LEVEL, ITERATE, ITERATION_NUMBER</td> 
 </tr> 
 <tr> 
 <td>J</td> 
 <td>JAVA, JOB, JOIN, JSON, JSONGET, JSONPARSE, JSONTOXML, JSON_ARRAY, JSON_ARRAYAGG, JSON_EQUAL, JSON_EXISTS, JSON_EXISTS2, JSON_HASH, JSON_LENGTH, JSON_MERGEPATCH, JSON_OBJECT, JSON_OBJECTAGG, JSON_PATCH, JSON_QUERY, JSON_SERIALIZE, JSON_TABLE, JSON_TEXTCONTAINS, JSON_TEXTCONTAINS2, JSON_TRANSFORM, JSON_VALUE</td> 
 </tr> 
 <tr> 
 <td>K</td> 
 <td>K, KEEP, KEEP_DUPLICATES, KERBEROS, KEY, KEYS, KEYSIZE, KEYSTORE, KEY_LENGTH, KILL</td> 
 </tr> 
 <tr> 
 <td>L</td> 
 <td>LABEL, LAG, LAG_DIFF, LAG_DIFF_PERCENT, LANGUAGE, LAST, LAST_DAY, LAST_VALUE, LATERAL, LAX, LAYER, LDAP_REGISTRATION, LDAP_REGISTRATION_ENABLED, LDAP_REG_SYNC_INTERVAL, LEAD, LEADING, LEAD_CDB, LEAD_CDB_URI, LEAD_DIFF, LEAD_DIFF_PERCENT, LEAF, LEAST, LEAVES, LEFT, LENGTH, LENGTH2, LENGTH4, LENGTHB, LENGTHC, LESS, LEVEL, LEVELS, LIBRARY, LIFE, LIFECYCLE, LIFETIME, LIKE2, LIKE4, LIKEC, LIMIT, LINEAR, LINK, LIST, LISTAGG, LN, LNNVL, LOAD, LOB, LOBNVL, LOBS, LOCAL, LOCALTIME, LOCALTIMESTAMP, LOCAL_INDEXES, LOCATION, LOCATOR, LOCKDOWN, LOCKED, LOCKING, LOG, LOGFILE, LOGFILES, LOGGING, LOGICAL, LOGICAL_READS_PER_CALL, LOGICAL_READS_PER_SESSION, LOGMINING, LOGOFF, LOGON, LOG_READ_ONLY_VIOLATIONS, LOST, LOW, LOWER, LPAD, LTRIM</td> 
 </tr> 
 <tr> 
 <td>M</td> 
 <td>M, MAIN, MAKE_REF, MANAGE, MANAGED, MANAGEMENT, MANAGER, MANUAL, MAP, MAPPER, MAPPING, MASTER, MATCH, MATCHED, MATCHES, MATCH_NUMBER, MATCH_RECOGNIZE, MATERIALIZE, MATERIALIZED, MATRIX, MAX, MAXARCHLOGS, MAXDATAFILES, MAXEXTENTS, MAXIMIZE, MAXINSTANCES, MAXLOGFILES, MAXLOGHISTORY, MAXLOGMEMBERS, MAXSIZE, MAXTRANS, MAXVALUE, MAX_AUDIT_SIZE, MAX_DIAG_SIZE, MAX_PDB_SNAPSHOTS, MAX_SHARED_TEMP_SIZE, MBRC, MEASURE, MEASURES, MEDIAN, MEDIUM, MEMBER, MEMCOMPRESS, MEMOPTIMIZE, MEMOPTIMIZE_WRITE, MEMORY, MERGE, MERGE$ACTIONS, MERGE_AJ, MERGE_CONST_ON, MERGE_SJ, METADATA, METADATA_SOURCE_PDB, METHOD, MIGRATE, MIGRATE_CROSS_CON, MIGRATION, MIN, MINEXTENTS, MINIMIZE, MINIMUM, MINING, MINUS_NULL, MINUTE, MINUTES, MINVALUE, MIRROR, MIRRORCOLD, MIRRORHOT, MISMATCH, MISSING, MLSLABEL, MOD, MODEL, MODEL_COMPILE_SUBQUERY, MODEL_DONTVERIFY_UNIQUENESS, MODEL_DYNAMIC_SUBQUERY, MODEL_MIN_ANALYSIS, MODEL_NB, MODEL_NO_ANALYSIS, MODEL_PBY, MODEL_PUSH_REF, MODEL_SV, MODIFICATION, MODIFY, MODIFY_COLUMN_TYPE, MODULE, MONITOR, MONITORING, MONTH, MONTHS, MONTHS_BETWEEN, MOUNT, MOUNTPATH, MOVE, MOVEMENT, MULTIDIMENSIONAL, MULTISET, MV_MERGE</td> 
 </tr> 
 <tr> 
 <td>N</td> 
 <td>NAME, NAMED, NAMESPACE, NAN, NANVL, NATIONAL, NATIVE, NATIVE_FULL_OUTER_JOIN, NATURAL, NAV, NCHAR, NCHAR_CS, NCHR, NCLOB, NEEDED, NEG, NESTED, NESTED_TABLE_FAST_INSERT, NESTED_TABLE_GET_REFS, NESTED_TABLE_ID, NESTED_TABLE_SET_REFS, NESTED_TABLE_SET_SETID, NETWORK, NEVER, NEW, NEW_TIME, NEXT, NEXT_DAY, NLJ_BATCHING, NLJ_INDEX_FILTER, NLJ_INDEX_SCAN, NLJ_PREFETCH, NLSSORT, NLS_CALENDAR, NLS_CHARACTERSET, NLS_CHARSET_DECL_LEN, NLS_CHARSET_ID, NLS_CHARSET_NAME, NLS_COLLATION_ID, NLS_COLLATION_NAME, NLS_COMP, NLS_CURRENCY, NLS_DATE_FORMAT, NLS_DATE_LANGUAGE, NLS_INITCAP, NLS_ISO_CURRENCY, NLS_LANG, NLS_LANGUAGE, NLS_LENGTH_SEMANTICS, NLS_LOWER, NLS_NCHAR_CONV_EXCP, NLS_NUMERIC_CHARACTERS, NLS_SORT, NLS_SPECIAL_CHARS, NLS_TERRITORY, NLS_UPPER, NL_AJ, NL_SJ, NO, NOAPPEND, NOARCHIVELOG, NOAUDIT, NOCACHE, NOCOPY, NOCPU_COSTING, NOCYCLE, NODELAY, NOENTITYESCAPING, NOEXTEND, NOFORCE, NOGUARANTEE, NOKEEP, NOLOCAL, NOLOGGING, NOMAPPING, NOMAXVALUE, NOMINIMIZE, NOMINVALUE, NOMONITORING, NONBLOCKING, NONE, NONEDITIONABLE, NONPARTITIONED, NONSCHEMA, NOORDER, NOOVERRIDE, NOPARALLEL, NOPARALLEL_INDEX, NORELOCATE, NORELY, NOREPAIR, NOREPLAY, NORESETLOGS, NOREVERSE, NOREWRITE, NORMAL, NOROWDEPENDENCIES, NOSCALE, NOSCHEMACHECK, NOSEGMENT, NOSHARD, NOSORT, NOSTRICT, NOSWITCH, NOTHING, NOTIFICATION, NOVALIDATE, NOW, NO_ACCESS, NO_ADAPTIVE_PLAN, NO_ANSI_REARCH, NO_ANSWER_QUERY_USING_STATS, NO_AUTO_REOPTIMIZE, NO_BAND_JOIN, NO_BASETABLE_MULTIMV_REWRITE, NO_BATCH_TABLE_ACCESS_BY_ROWID, NO_BIND_AWARE, NO_BUFFER, NO_BUSHY_JOIN, NO_CARTESIAN, NO_CHECK_ACL_REWRITE, NO_CLUSTERING, NO_CLUSTER_BY_ROWID, NO_COALESCE_SQ, NO_COMMON_DATA, NO_CONNECT_BY_CB_WHR_ONLY, NO_CONNECT_BY_COMBINE_SW, NO_CONNECT_BY_COST_BASED, NO_CONNECT_BY_ELIM_DUPS, NO_CONNECT_BY_FILTERING, NO_CONTAINERS, NO_COST_XML_QUERY_REWRITE, NO_CPU_COSTING, NO_CROSS_CONTAINER, NO_DATA_SECURITY_REWRITE, NO_DECORRELATE, NO_DIST_AGG_PROLLUP_PUSHDOWN, NO_DOMAIN_INDEX_FILTER, NO_DST_UPGRADE_INSERT_CONV, NO_ELIMINATE_JOIN, NO_ELIMINATE_OBY, NO_ELIMINATE_OUTER_JOIN, NO_ELIMINATE_SQ, NO_ELIM_GROUPBY, NO_EXPAND, NO_EXPAND_GSET_TO_UNION, NO_EXPAND_TABLE, NO_FACT, NO_FACTORIZE_JOIN, NO_FILTERING, NO_FULL_OUTER_JOIN_TO_OUTER, NO_GATHER_OPTIMIZER_STATISTICS, NO_GBY_PUSHDOWN, NO_INDEX, NO_INDEX_FFS, NO_INDEX_SS, NO_INMEMORY, NO_INMEMORY_PRUNING, NO_LOAD, NO_MERGE, NO_MODEL_PUSH_REF, NO_MONITOR, NO_MONITORING, NO_MULTIMV_REWRITE, NO_NATIVE_FULL_OUTER_JOIN, NO_NLJ_BATCHING, NO_NLJ_PREFETCH, NO_OBJECT_LINK, NO_ORDER_ROLLUPS, NO_OR_EXPAND, NO_OUTER_JOIN_TO_ANTI, NO_OUTER_JOIN_TO_INNER, NO_PARALLEL, NO_PARALLEL_INDEX, NO_PARTIAL_COMMIT, NO_PARTIAL_JOIN, NO_PARTIAL_ROLLUP_PUSHDOWN, NO_PLACE_DISTINCT, NO_PLACE_GROUP_BY, NO_PQ_CONCURRENT_UNION, NO_PQ_EXPAND_TABLE, NO_PQ_MAP, NO_PQ_REPLICATE, NO_PQ_SKEW, NO_PRUNE_GSETS, NO_PULL_PRED, NO_PUSH_HAVING_TO_GBY, NO_PUSH_PRED, NO_PUSH_SUBQ, NO_PX_FAULT_TOLERANCE, NO_PX_JOIN_FILTER, NO_QKN_BUFF, NO_QUERY_TRANSFORMATION, NO_REF_CASCADE, NO_REORDER_WIF, NO_RESULT_CACHE, NO_REWRITE, NO_ROOT_SW_FOR_LOCAL, NO_SEMIJOIN, NO_SEMI_TO_INNER, NO_SET_TO_JOIN, NO_SQL_TRANSLATION, NO_SQL_TUNE, NO_STAR_TRANSFORMATION, NO_STATEMENT_QUEUING, NO_STATS_GSETS, NO_SUBQUERY_PRUNING, NO_SUBSTRB_PAD, NO_SWAP_JOIN_INPUTS, NO_TABLE_LOOKUP_BY_NL, NO_TEMP_TABLE, NO_TRANSFORM_DISTINCT_AGG, NO_UNNEST, NO_USE_CUBE, NO_USE_DAGG_UNION_ALL_GSETS, NO_USE_HASH, NO_USE_HASH_AGGREGATION, NO_USE_HASH_GBY_FOR_DAGGPSHD, NO_USE_HASH_GBY_FOR_PUSHDOWN, NO_USE_INVISIBLE_INDEXES, NO_USE_MERGE, NO_USE_NL, NO_USE_PARTITION_WISE_DISTINCT, NO_USE_PARTITION_WISE_GBY, NO_USE_PARTITION_WISE_WIF, NO_USE_SCALABLE_GBY_INVDIST, NO_USE_VECTOR_AGGREGATION, NO_VECTOR_TRANSFORM, NO_VECTOR_TRANSFORM_DIMS, NO_VECTOR_TRANSFORM_FACT, NO_XDB_FASTPATH_INSERT, NO_XMLINDEX_REWRITE, NO_XMLINDEX_REWRITE_IN_SELECT, NO_XML_DML_REWRITE, NO_XML_QUERY_REWRITE, NO_ZONEMAP, NTH_VALUE, NTILE, NULLIF, NULLS, NUMERIC, NUMTODSINTERVAL, NUMTOYMINTERVAL, NUM_INDEX_KEYS, NVARCHAR2, NVL, NVL2</td> 
 </tr> 
 <tr> 
 <td>O</td> 
 <td>OBJECT, OBJECT2XML, OBJNO, OBJNO_REUSE, OBJ_ID, OCCURENCES, OCCURRENCES, OFF, OFFLINE, OFFSET, OID, OIDINDEX, OLAP, OLD, OLD_PUSH_PRED, OLS, OLTP, OMIT, ONE, ONLINE, ONLY, OPAQUE, OPAQUE_TRANSFORM, OPAQUE_XCANONICAL, OPCODE, OPEN, OPERATIONS, OPERATOR, OPTIMAL, OPTIMIZE, OPTIMIZER_FEATURES_ENABLE, OPTIMIZER_GOAL, OPT_ESTIMATE, OPT_PARAM, ORADEBUG, ORA_BRANCH, ORA_CHECK_ACL, ORA_CHECK_PRIVILEGE, ORA_CHECK_SYS_PRIVILEGE, ORA_CLUSTERING, ORA_CONCAT_RWKEY, ORA_DM_PARTITION_NAME, ORA_DST_AFFECTED, ORA_DST_CONVERT, ORA_DST_ERROR, ORA_GET_ACLIDS, ORA_GET_PRIVILEGES, ORA_HASH, ORA_INVOKING_USER, ORA_INVOKING_USERID, ORA_INVOKING_XS_USER, ORA_INVOKING_XS_USER_GUID, ORA_PARTITION_VALIDATION, ORA_RAWCOMPARE, ORA_RAWCONCAT, ORA_ROWSCN, ORA_ROWSCN_RAW, ORA_ROWVERSION, ORA_SEARCH_RWKEY, ORA_SHARD_ID, ORA_TABVERSION, ORA_WRITE_TIME, ORDERED, ORDERED_PREDICATES, ORDER_SUBQ, ORDINALITY, ORGANIZATION, OR_EXPAND, OR_PREDICATES, OSON, OTHER, OUTER, OUTER_JOIN_TO_ANTI, OUTER_JOIN_TO_INNER, OUTLINE, OUTLINE_LEAF, OUT_OF_LINE, OVER, OVERFLOW, OVERFLOW_NOMOVE, OVERLAPS, OWN, OWNER, OWNERSHIP</td> 
 </tr> 
 <tr> 
 <td>P</td> 
 <td>P, PACKAGE, PACKAGES, PARALLEL, PARALLEL_INDEX, PARAM, PARAMETERS, PARENT, PARITY, PART N U M NUM NUMINST, PARTIAL, PARTIALLY, PARTIAL_JOIN, PARTIAL_ROLLUP_PUSHDOWN, PARTITION, PARTITIONING, PARTITIONS, PARTITIONSET, PARTITION_CONTAINED, PARTITION_HASH, PARTITION_LIST, PARTITION_RANGE, PASSING, PASSWORD, PASSWORDFILE_METADATA_CACHE, PASSWORD_GRACE_TIME, PASSWORD_LIFE_TIME, PASSWORD_LOCK_TIME, PASSWORD_REUSE_MAX, PASSWORD_REUSE_TIME, PASSWORD_VERIFY_FUNCTION, PAST, PATCH, PATH, PATHS, PATH_PREFIX, PATTERN, PBL_HS_BEGIN, PBL_HS_END, PCTINCREASE, PCTTHRESHOLD, PCTUSED, PCTVERSION, PDB_LOCAL_ONLY, PENDING, PER, PERCENT, PERCENTILE_CONT, PERCENTILE_DISC, PERCENT_RANK, PERCENT_RANKM, PERFORMANCE, PERIOD, PERMANENT, PERMISSION, PERMUTE, PERSISTABLE, PFILE, PHV, PHYSICAL, PIKEY, PIVOT, PIV_GB, PIV_SSF, PLACE_DISTINCT, PLACE_GROUP_BY, PLAN, PLSCOPE_SETTINGS, PLSQL_CCFLAGS, PLSQL_CODE_TYPE, PLSQL_DEBUG, PLSQL_OPTIMIZE_LEVEL, PLSQL_WARNINGS, PLUGGABLE, POINT, POLICY, POOL_16K, POOL_2K, POOL_32K, POOL_4K, POOL_8K, PORT, POSITION, POST_TRANSACTION, POWER, POWERMULTISET, POWERMULTISET_BY_CARDINALITY, PQ_CONCURRENT_UNION, PQ_DISTRIBUTE, PQ_DISTRIBUTE_WINDOW, PQ_EXPAND_TABLE, PQ_FILTER, PQ_MAP, PQ_NOMAP, PQ_REPLICATE, PQ_SKEW, PREBUILT, PRECEDES, PRECEDING, PRECISION, PRECOMPUTE_SUBQUERY, PREDICATE_REORDERS, PREDICTION, PREDICTION_BOUNDS, PREDICTION_COST, PREDICTION_DETAILS, PREDICTION_PROBABILITY, PREDICTION_SET, PRELOAD, PREPARE, PRESENT, PRESENTNNV, PRESENTV, PRESERVE, PRESERVE_OID, PRETTY, PREV, PREVIOUS, PRIMARY, PRINTBLOBTOCLOB, PRIORITY, PRIVATE, PRIVATE_SGA, PRIVILEGE, PRIVILEGED, PRIVILEGES, PROCEDURAL, PROCEDURE, PROCESS, PROFILE, PROGRAM, PROJECT, PROPAGATE, PROPERTY, PROTECTED, PROTECTION, PROTOCOL, PROXY, PRUNING, PULL_PRED, PURGE, PUSH_HAVING_TO_GBY, PUSH_PRED, PUSH_SUBQ, PX_FAULT_TOLERANCE, PX_GRANULE, PX_JOIN_FILTER</td> 
 </tr> 
 <tr> 
 <td>Q</td> 
 <td>QB_NAME, QUALIFY, QUARANTINE, QUARTERS, QUERY, QUERY_BLOCK, QUEUE, QUEUE_CURR, QUEUE_ROWP, QUIESCE, QUORUM, QUOTA, QUOTAGROUP</td> 
 </tr> 
 <tr> 
 <td>R</td> 
 <td>RANDOM, RANDOM_LOCAL, RANGE, RANK, RANKM, RAPIDLY, RATIO_TO_REPORT, RAWTOHEX, RAWTONHEX, RAWTOREF, RBA, RBO_OUTLINE, RDBA, READ, READS, READ_OR_WRITE, REAL, REALM, REBALANCE, REBUILD, RECONNECT, RECORDS_PER_BLOCK, RECOVER, RECOVERABLE, RECOVERY, RECYCLE, RECYCLEBIN, REDACTION, REDEFINE, REDO, REDUCED, REDUNDANCY, REF, REFERENCE, REFERENCED, REFERENCES, REFERENCING, REFRESH, REFTOHEX, REFTORAW, REF_CASCADE_CURSOR, REGEXP_COUNT, REGEXP_INSTR, REGEXP_LIKE, REGEXP_REPLACE, REGEXP_SUBSTR, REGISTER, REGR_AVGX, REGR_AVGY, REGR_COUNT, REGR_INTERCEPT, REGR_R2, REGR_SLOPE, REGR_SXX, REGR_SXY, REGR_SYY, REGULAR, REJECT, REKEY, RELATIONAL, RELOCATE, RELY, REMAINDER, REMOTE, REMOTE_MAPPED, REMOVE, REORDER_WIF, REPAIR, REPEAT, REPLACE, REPLICATION, REQUIRED, RESERVOIR_SAMPLING, RESET, RESETLOGS, RESIZE, RESOLVE, RESOLVER, RESPECT, RESTART, RESTORE, RESTORE_AS_INTERVALS, RESTRICT, RESTRICTED, RESTRICT_ALL_REF_CONS, RESULT_CACHE, RESUMABLE, RESUME, RETENTION, RETRY_ON_ROW_CHANGE, RETURN, RETURNING, REUSE, REVERSE, REWRITE, REWRITE_OR_ERROR, RIGHT, RLS_FORCE, ROLE, ROLES, ROLESET, ROLLBACK, ROLLING, ROLLUP, ROOT, ROUND, ROUND_TIES_TO_EVEN, ROW, ROWDEPENDENCIES, ROWID, ROWIDTOCHAR, ROWIDTONCHAR, ROWID_MAPPING_TABLE, ROWNUM, ROWS, ROW_LENGTH, ROW_NUMBER, RPAD, RTRIM, RULE, RULES, RUNNING</td> 
 </tr> 
 <tr> 
 <td>S</td> 
 <td>SALT, SAMPLE, SAVE, SAVEPOINT, SAVE_AS_INTERVALS, SB4, SCALE, SCALE_ROWS, SCAN, SCAN_INSTANCES, SCHEDULER, SCHEMA, SCHEMACHECK, SCN, SCN_ASCENDING, SCOPE, SCRUB, SDO_GEOM_KEY, SDO_GEOM_MAX_X, SDO_GEOM_MAX_Y, SDO_GEOM_MAX_Z, SDO_GEOM_MBB, SDO_GEOM_MBR, SDO_GEOM_MIN_X, SDO_GEOM_MIN_Y, SDO_GEOM_MIN_Z, SDO_TOLERANCE, SD_ALL, SD_INHIBIT, SD_SHOW, SEARCH, SECOND, SECONDS, SECRET, SECUREFILE, SECUREFILE_DBA, SECURITY, SEED, SEGMENT, SEG_BLOCK, SEG_FILE, SELECTIVITY, SELF, SEMIJOIN, SEMIJOIN_DRIVER, SEMI_TO_INNER, SEQUENCE, SEQUENCED, SEQUENTIAL, SERIAL, SERIALIZABLE, SERVERERROR, SERVICE, SERVICES, SERVICE_NAME_CONVERT, SESSION, SESSIONS_PER_USER, SESSIONTIMEZONE, SESSIONTZNAME, SESSION_CACHED_CURSORS, SETS, SETTINGS, SET_TO_JOIN, SEVERE, SHARD, SHARDED, SHARDS, SHARDSPACE, SHARED, SHARED_POOL, SHARE_OF, SHARING, SHELFLIFE, SHOW, SHRINK, SHUTDOWN, SIBLING, SIBLINGS, SID, SIGN, SIGNAL_COMPONENT, SIGNAL_FUNCTION, SIMPLE, SIN, SINGLE, SINGLETASK, SINH, SITE, SKIP, SKIP_EXT_OPTIMIZER, SKIP_PROXY, SKIP_UNQ_UNUSABLE_IDX, SKIP_UNUSABLE_INDEXES, SMALLFILE, SNAPSHOT, SOME, SORT, SOUNDEX, SOURCE, SOURCE_FILE_DIRECTORY, SOURCE_FILE_NAME_CONVERT, SPACE, SPECIFICATION, SPFILE, SPLIT, SPREADSHEET, SQL, SQLLDR, SQL_SCOPE, SQL_TRACE, SQL_TRANSLATION_PROFILE, SQRT, STALE, STANDALONE, STANDARD_HASH, STANDBY, STANDBYS, STANDBY_MAX_DATA_DELAY, STAR, STARTUP, STAR_TRANSFORMATION, STATE, STATEMENT, STATEMENTS, STATEMENT_ID, STATEMENT_QUEUING, STATIC, STATISTICS, STATS_BINOMIAL_TEST, STATS_CROSSTAB, STATS_F_TEST, STATS_KS_TEST, STATS_MODE, STATS_MW_TEST, STATS_ONE_WAY_ANOVA, STATS_T_TEST_INDEP, STATS_T_TEST_INDEPU, STATS_T_TEST_ONE, STATS_T_TEST_PAIRED, STATS_WSR_TEST, STDDEV, STDDEV_POP, STDDEV_SAMP, STOP, STORAGE, STORAGE_INDEX, STORE, STREAM, STREAMS, STRICT, STRING, STRIP, STRIPE_COLUMNS, STRIPE_WIDTH, STRUCTURE, SUBMULTISET, SUBPARTITION, SUBPARTITIONING, SUBPARTITIONS, SUBPARTITION_REL, SUBQUERIES, SUBQUERY_PRUNING, SUBSCRIBE, SUBSET, SUBSTITUTABLE, SUBSTR, SUBSTR2, SUBSTR4, SUBSTRB, SUBSTRC, SUCCESS, SUCCESSFUL, SUM, SUMMARY, SUPPLEMENTAL, SUPPRESS_LOAD, SUSPEND, SWAP_JOIN_INPUTS, SWITCH, SWITCHOVER, SYNC, SYNCHRONOUS, SYSASM, SYSAUX, SYSBACKUP, SYSDATE, SYSDBA, SYSDG, SYSGUID, SYSKM, SYSOBJ, SYSOPER, SYSRAC, SYSTEM, SYSTEM_DEFINED, SYSTEM_STATS, SYSTIMESTAMP, SYS_AUDIT, SYS_CHECKACL, SYS_CHECK_PRIVILEGE, SYS_CONNECT_BY_PATH, SYS_CONTEXT, SYS_CTXINFOPK, SYS_CTX_CONTAINS2, SYS_CTX_MKIVIDX, SYS_DBURIGEN, SYS_DL_CURSOR, SYS_DM_RXFORM_CHR, SYS_DM_RXFORM_LAB, SYS_DM_RXFORM_NUM, SYS_DOM_COMPARE, SYS_DST_PRIM2SEC, SYS_DST_SEC2PRIM, SYS_ET_BFILE_TO_RAW, SYS_ET_BLOB_TO_IMAGE, SYS_ET_IMAGE_TO_BLOB, SYS_ET_RAW_TO_BFILE, SYS_EXTPDTXT, SYS_EXTRACT_UTC, SYS_FBT_INSDEL, SYS_FILTER_ACLS, SYS_FNMATCHES, SYS_FNREPLACE, SYS_GETTOKENID, SYS_GETXTIVAL, SYS_GET_ACLIDS, SYS_GET_COL_ACLIDS, SYS_GET_PRIVILEGES, SYS_GUID, SYS_MAKEXML, SYS_MAKE_XMLNODEID, SYS_MKXMLATTR, SYS_MKXTI, SYS_OPTLOBPRBSC, SYS_OPTXICMP, SYS_OPTXQCASTASNQ, SYS_OP_ADT2BIN, SYS_OP_ADTCONS, SYS_OP_ALSCRVAL, SYS_OP_ATG, SYS_OP_BIN2ADT, SYS_OP_BITVEC, SYS_OP_BL2R, SYS_OP_BLOOM_FILTER, SYS_OP_BLOOM_FILTER_LIST, SYS_OP_C2C, SYS_OP_CAST, SYS_OP_CEG, SYS_OP_CL2C, SYS_OP_COMBINED_HASH, SYS_OP_COMP, SYS_OP_CONVERT, SYS_OP_COUNTCHG, SYS_OP_CSCONV, SYS_OP_CSCONVTEST, SYS_OP_CSR, SYS_OP_CSX_PATCH, SYS_OP_CYCLED_SEQ, SYS_OP_DECOMP, SYS_OP_DESCEND, SYS_OP_DISTINCT, SYS_OP_DRA, SYS_OP_DSB_DESERIALIZE, SYS_OP_DSB_SERIALIZE, SYS_OP_DUMP, SYS_OP_DV_CHECK, SYS_OP_ENFORCE_NOT_NULL S Y S O P E X T R A C T , S Y S O P G R O U P I N G , S Y S O P G U I D , S Y S O P H A S H , S Y S O P H C S T A B L E , S Y S O P I I X , S Y S O P I T R , S Y S O P K E Y V E C T O R C R E A T E , S Y S O P K E Y V E C T O R F I L T E R , S Y S O P K E Y V E C T O R F I L T E R L I S T , S Y S O P K E Y V E C T O R P A Y L O A D , S Y S O P K E Y V E C T O R S U C C E E D E D , S Y S O P K E Y V E C T O R U S E , S Y S O P L B I D , S Y S O P L O B L O C 2 B L O B , S Y S O P L O B L O C 2 C L O B , S Y S O P L O B L O C 2 I D , S Y S O P L O B L O C 2 N C L O B , S Y S O P L O B L O C 2 T Y P , S Y S O P L S V I , S Y S O P L V L , S Y S O P M A K E O I D , S Y S O P M A P N O N N U L L , S Y S O P M S R , S Y S O P N I C O M B I N E , S Y S O P N I E X T R A C T , S Y S O P N I I , S Y S O P N I X , S Y S O P N O E X P A N D , S Y S O P N T C I M G SYS_OP_EXTRACT, SYS_OP_GROUPING, SYS_OP_GUID, SYS_OP_HASH, SYS_OP_HCS_TABLE, SYS_OP_IIX, SYS_OP_ITR, SYS_OP_KEY_VECTOR_CREATE, SYS_OP_KEY_VECTOR_FILTER, SYS_OP_KEY_VECTOR_FILTER_LIST, SYS_OP_KEY_VECTOR_PAYLOAD, SYS_OP_KEY_VECTOR_SUCCEEDED, SYS_OP_KEY_VECTOR_USE, SYS_OP_LBID, SYS_OP_LOBLOC2BLOB, SYS_OP_LOBLOC2CLOB, SYS_OP_LOBLOC2ID, SYS_OP_LOBLOC2NCLOB, SYS_OP_LOBLOC2TYP, SYS_OP_LSVI, SYS_OP_LVL, SYS_OP_MAKEOID, SYS_OP_MAP_NONNULL, SYS_OP_MSR, SYS_OP_NICOMBINE, SYS_OP_NIEXTRACT, SYS_OP_NII, SYS_OP_NIX, SYS_OP_NOEXPAND, SYS_OP_NTCIMG SYSOPEXTRACT,SYSOPGROUPING,SYSOPGUID,SYSOPHASH,SYSOPHCSTABLE,SYSOPIIX,SYSOPITR,SYSOPKEYVECTORCREATE,SYSOPKEYVECTORFILTER,SYSOPKEYVECTORFILTERLIST,SYSOPKEYVECTORPAYLOAD,SYSOPKEYVECTORSUCCEEDED,SYSOPKEYVECTORUSE,SYSOPLBID,SYSOPLOBLOC2BLOB,SYSOPLOBLOC2CLOB,SYSOPLOBLOC2ID,SYSOPLOBLOC2NCLOB,SYSOPLOBLOC2TYP,SYSOPLSVI,SYSOPLVL,SYSOPMAKEOID,SYSOPMAPNONNULL,SYSOPMSR,SYSOPNICOMBINE,SYSOPNIEXTRACT,SYSOPNII,SYSOPNIX,SYSOPNOEXPAND,SYSOPNTCIMGSYS_OP_NUMTORAW, SYS_OP_OIDVALUE, SYS_OP_OPNSIZE, SYS_OP_PAR, SYS_OP_PARGID, SYS_OP_PARGID_1, SYS_OP_PART_ID, SYS_OP_PAR_1, SYS_OP_PIVOT, SYS_OP_R2O, SYS_OP_RAWTONUM, SYS_OP_RDTM, SYS_OP_REF, SYS_OP_RMTD, SYS_OP_ROWIDTOOBJ, SYS_OP_RPB, SYS_OP_TOSETID, SYS_OP_TPR, SYS_OP_TRTB, SYS_OP_UNDESCEND, SYS_OP_VECAND, SYS_OP_VECBIT, SYS_OP_VECOR, SYS_OP_VECTOR_GROUP_BY, SYS_OP_VECXOR, SYS_OP_VERSION, SYS_OP_VREF, SYS_OP_VVD, SYS_OP_XMLCONS_FOR_CSX, SYS_OP_XPTHATG, SYS_OP_XPTHIDX, SYS_OP_XPTHOP, SYS_OP_XTNN, SYS_OP_XTXT2SQLT, SYS_OP_ZONE_ID, SYS_ORDERKEY_DEPTH, SYS_ORDERKEY_MAXCHILD, SYS_ORDERKEY_PARENT, SYS_PARALLEL_TXN, SYS_PATHID_IS_ATTR, SYS_PATHID_IS_NMSPC, SYS_PATHID_LASTNAME, SYS_PATHID_LASTNMSPC, SYS_PATH_REVERSE, SYS_PLSQL_COUNT, SYS_PLSQL_CPU, SYS_PLSQL_IO, SYS_PXQEXTRACT, SYS_RAW_TO_XSID, SYS_REMAP_XMLTYPE, SYS_RID_ORDER, SYS_ROW_DELTA, SYS_SC_2_XMLT, SYS_SYNRCIREDO, SYS_TYPEID, SYS_UMAKEXML, SYS_XMLANALYZE, SYS_XMLCONTAINS, SYS_XMLCONV, SYS_XMLEXNSURI, SYS_XMLGEN, SYS_XMLINSTR, SYS_XMLI_LOC_ISNODE, SYS_XMLI_LOC_ISTEXT, SYS_XMLLOCATOR_GETSVAL, SYS_XMLNODEID, SYS_XMLNODEID_GETCID, SYS_XMLNODEID_GETLOCATOR, SYS_XMLNODEID_GETOKEY, SYS_XMLNODEID_GETPATHID, SYS_XMLNODEID_GETPTRID, SYS_XMLNODEID_GETRID, SYS_XMLNODEID_GETSVAL, SYS_XMLNODEID_GETTID, SYS_XMLTRANSLATE, SYS_XMLTYPE2SQL, SYS_XMLT_2_SC, SYS_XQBASEURI, SYS_XQCASTABLEERRH, SYS_XQCODEP2STR, SYS_XQCODEPEQ, SYS_XQCON2SEQ, SYS_XQCONCAT, SYS_XQDELETE, SYS_XQDFLTCOLATION, SYS_XQDOC, SYS_XQDOCURI, SYS_XQDURDIV, SYS_XQED4URI, SYS_XQENDSWITH, SYS_XQERR, SYS_XQERRH, SYS_XQESHTMLURI, SYS_XQEXLOBVAL, SYS_XQEXSTWRP, SYS_XQEXTRACT, SYS_XQEXTRREF, SYS_XQEXVAL, SYS_XQFB2STR, SYS_XQFNBOOL, SYS_XQFNCMP, SYS_XQFNDATIM, SYS_XQFNLNAME, SYS_XQFNNM, SYS_XQFNNSURI, SYS_XQFNPREDTRUTH, SYS_XQFNQNM, SYS_XQFNROOT, SYS_XQFORMATNUM, SYS_XQFTCONTAIN, SYS_XQFUNCR, SYS_XQGETCONTENT, SYS_XQINDXOF, SYS_XQINSERT, SYS_XQINSPFX, SYS_XQIRI2URI, SYS_XQLANG, SYS_XQLLNMFRMQNM, SYS_XQMKNODEREF, SYS_XQNILLED, SYS_XQNODENAME, SYS_XQNORMSPACE, SYS_XQNORMUCODE, SYS_XQNSP4PFX, SYS_XQNSPFRMQNM, SYS_XQPFXFRMQNM, SYS_XQPOLYABS, SYS_XQPOLYADD, SYS_XQPOLYCEL, SYS_XQPOLYCST, SYS_XQPOLYCSTBL, SYS_XQPOLYDIV, SYS_XQPOLYFLR, SYS_XQPOLYMOD, SYS_XQPOLYMUL, SYS_XQPOLYRND, SYS_XQPOLYSQRT, SYS_XQPOLYSUB, SYS_XQPOLYUMUS, SYS_XQPOLYUPLS, SYS_XQPOLYVEQ, SYS_XQPOLYVGE, SYS_XQPOLYVGT, SYS_XQPOLYVLE, SYS_XQPOLYVLT, SYS_XQPOLYVNE, SYS_XQREF2VAL, SYS_XQRENAME, SYS_XQREPLACE, SYS_XQRESVURI, SYS_XQRNDHALF2EVN, SYS_XQRSLVQNM, SYS_XQRYENVPGET, SYS_XQRYVARGET, SYS_XQRYWRP, SYS_XQSEQ2CON, SYS_XQSEQ2CON4XC, SYS_XQSEQDEEPEQ, SYS_XQSEQINSB, SYS_XQSEQRM, SYS_XQSEQRVS, SYS_XQSEQSUB, SYS_XQSEQTYPMATCH, SYS_XQSTARTSWITH, SYS_XQSTATBURI, SYS_XQSTR2CODEP, SYS_XQSTRJOIN, SYS_XQSUBSTRAFT, SYS_XQSUBSTRBEF, SYS_XQTOKENIZE, SYS_XQTREATAS, SYS_XQXFORM, SYS_XQ_ASQLCNV, SYS_XQ_ATOMCNVCHK, SYS_XQ_NRNG, SYS_XQ_PKSQL2XML, SYS_XQ_UPKXML2SQL, SYS_XSID_TO_RAW, SYS_ZMAP_FILTER, SYS_ZMAP_REFRESH</td> 
 </tr> 
 <tr> 
 <td>T</td> 
 <td>T, TABLES, TABLESPACE, TABLESPACE_NO, TABLE_LOOKUP_BY_NL, TABLE_STATS, TABNO, TAG, TAN, TANH, TARGET, TBL O R OR ORIDX P A R T PART PARTNUM, TEMPFILE, TEMPLATE, TEMPORARY, TEMP_TABLE, TENANT_ID, TEST, TEXT, THAN, THE, THREAD, THROUGH, TIER, TIES, TIME, TIMEOUT, TIMES, TIMESTAMP, TIMESTAMP_TO_NUMBER, TIMEZONE_ABBR, TIMEZONE_HOUR, TIMEZONE_MINUTE, TIMEZONE_OFFSET, TIMEZONE_REGION, TIME_ZONE, TIV_GB, TIV_SSF, TOKEN, TOPLEVEL, TO_ACLID, TO_APPROX_COUNT_DISTINCT, TO_APPROX_PERCENTILE, TO_BINARY_DOUBLE, TO_BINARY_FLOAT, TO_BLOB, TO_CHAR, TO_CLOB, TO_DATE, TO_DSINTERVAL, TO_LOB, TO_MULTI_BYTE, TO_NCHAR, TO_NCLOB, TO_NUMBER, TO_SINGLE_BYTE, TO_TIME, TO_TIMESTAMP, TO_TIMESTAMP_TZ, TO_TIME_TZ, TO_UTC_TIMESTAMP_TZ, TO_YMINTERVAL, TRACE, TRACING, TRACKING, TRAILING, TRANSACTION, TRANSFORM_DISTINCT_AGG, TRANSITION, TRANSITIONAL, TRANSLATE, TRANSLATION, TREAT, TRIGGERS, TRIM, TRUE, TRUNC, TRUNCATE, TRUST, TRUSTED, TUNING, TX, TYPE, TYPENAME, TYPES, TZ_OFFSET</td> 
 </tr> 
 <tr> 
 <td>U</td> 
 <td>U, UB2, UBA, UCS2, UID, UNARCHIVED, UNBOUND, UNBOUNDED, UNCONDITIONAL, UNDER, UNDO, UNDROP, UNIFORM, UNINSTALL, UNISTR, UNITE, UNIXTIME, UNLIMITED, UNLOAD, UNLOCK, UNMATCHED, UNNEST, UNNEST_INNERJ_DISTINCT_VIEW, UNNEST_NOSEMIJ_NODISTINCTVIEW, UNNEST_SEMIJ_VIEW, UNPACKED, UNPIVOT, UNPLUG, UNPROTECTED, UNQUIESCE, UNRECOVERABLE, UNRESTRICTED, UNSUBSCRIBE, UNTIL, UNUSABLE, UNUSED, UPDATABLE, UPDATED, UPDATEXML, UPD_INDEXES, UPD_JOININDEX, UPGRADE, UPPER, UPSERT, UROWID, USABLE, USAGE, USE, USER, USERENV, USERGROUP, USERS, USER_DATA, USER_DEFINED, USER_RECYCLEBIN, USER_TABLESPACES, USE_ANTI, USE_CONCAT, USE_CUBE, USE_DAGG_UNION_ALL_GSETS, USE_HASH, USE_HASH_AGGREGATION, USE_HASH_GBY_FOR_DAGGPSHD, USE_HASH_GBY_FOR_PUSHDOWN, USE_HIDDEN_PARTITIONS, USE_INVISIBLE_INDEXES, USE_MERGE, USE_MERGE_CARTESIAN, USE_NL, USE_NL_WITH_INDEX, USE_PARTITION_WISE_DISTINCT, USE_PARTITION_WISE_GBY, USE_PARTITION_WISE_WIF, USE_PRIVATE_OUTLINES, USE_SCALABLE_GBY_INVDIST, USE_SEMI, USE_STORED_OUTLINES, USE_TTT_FOR_GSETS, USE_VECTOR_AGGREGATION, USE_WEAK_NAME_RESL, USING, USING_NO_EXPAND, UTF16BE, UTF16LE, UTF32, UTF8</td> 
 </tr> 
 <tr> 
 <td>V</td> 
 <td>V1, V2, VALIDATE, VALIDATE_CONVERSION, VALIDATION, VALID_TIME_END, VALUE, VARIANCE, VARRAY, VARRAYS, VARYING, VAR_POP, VAR_SAMP, VECTOR, VECTOR_ENCODE, VECTOR_READ, VECTOR_READ_TRACE, VECTOR_TRANSFORM, VECTOR_TRANSFORM_DIMS, VECTOR_TRANSFORM_FACT, VERIFIER, VERIFY, VERSION, VERSIONING, VERSIONS, VERSIONS_ENDSCN, VERSIONS_ENDTIME, VERSIONS_OPERATION, VERSIONS_STARTSCN, VERSIONS_STARTTIME, VERSIONS_XID, VIOLATION, VIRTUAL, VISIBILITY, VISIBLE, VOLUME, VSIZE</td> 
 </tr> 
 <tr> 
 <td>W</td> 
 <td>WAIT, WALLET, WEEK, WEEKS, WELLFORMED, WHEN, WHENEVER, WHITESPACE, WIDTH_BUCKET, WITHIN, WITHOUT, WITH_EXPRESSION, WITH_PLSQL, WORK, WRAPPED, WRAPPER, WRITE</td> 
 </tr> 
 <tr> 
 <td>X</td> 
 <td>XDB_FASTPATH_INSERT, XID, XML, XML2OBJECT, XMLATTRIBUTES, XMLCAST, XMLCDATA, XMLCOLATTVAL, XMLCOMMENT, XMLCONCAT, XMLDIFF, XMLELEMENT, XMLEXISTS, XMLEXISTS2, XMLFOREST, XMLINDEX_REWRITE, XMLINDEX_REWRITE_IN_SELECT, XMLINDEX_SEL_IDX_TBL, XMLISNODE, XMLISVALID, XMLNAMESPACES, XMLPARSE, XMLPATCH, XMLPI, XMLQUERY, XMLQUERYVAL, XMLROOT, XMLSCHEMA, XMLSERIALIZE, XMLTABLE, XMLTOJSON, XMLTOKENSET, XMLTRANSFORM, XMLTRANSFORMBLOB, XMLTSET_DML_ENABLE, XMLTYPE, XML_DML_RWT_STMT, XPATHTABLE, XS, XS_SYS_CONTEXT, X_DYN_PRUNE</td> 
 </tr> 
 <tr> 
 <td>Y</td> 
 <td>YEAR, YEARS, YES</td> 
 </tr> 
 <tr> 
 <td>Z</td> 
 <td>ZONE, ZONEMAP</td> 
 </tr> 
 </tbody> 
</table>

官方文档链接：https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/Oracle-SQL-Reserved-Words-and-Keywords.html\#GUID-6A07BB21-AD82-4B47-80FA-9B1141CC23C2