---------------------------------------------------- SQL keywords introduced in different server versions ---------------------------------------------------- Deviations from the standard: * : keyword does not exist in the SQL:2016 specification and should be considered a non-standard language extention. (1) : reserved word in SQL:2016, non-reserved in Firebird (2) : non-reserved word in SQL:2016, reserved word in Firebird Firebird 1.0 ------------ Added as reserved words: BREAK * CURRENT_ROLE CURRENT_USER DESCRIPTOR (2) FIRST (2) RECREATE * SKIP SUBSTRING Firebird 1.5 ------------ Added as reserved words: BIGINT CASE CURRENT_CONNECTION * CURRENT_TRANSACTION * RELEASE ROW_COUNT SAVEPOINT Added as non-reserved words: COALESCE (1) DELETING * INSERTING * LAST LEAVE * LOCK * NULLIF (1) NULLS STATEMENT UPDATING * USING (1) Moved from reserved words to non-reserved: BREAK * DESCRIPTOR FIRST SKIP (1) SUBSTRING (1) Firebird 2.0 ------------ Added as reserved words: BIT_LENGTH * BOTH CHAR_LENGTH CHARACTER_LENGTH CLOSE CROSS FETCH LEADING LOWER OCTET_LENGTH OPEN ROWS TRAILING TRIM Moved from non-reserved words to reserved: USING Added as non-reserved words: BACKUP * BLOCK * COLLATION COMMENT * DIFFERENCE * IIF * NEXT SCALAR_ARRAY * SEQUENCE RESTART RETURNING Moved from reserved words to non-reserved: ACTION CASCADE FREE_IT * RESTRICT ROLE TYPE WEEKDAY * YEARDAY * Removed reserved words: BASENAME * CACHE * CHECK_POINT_LEN * GROUP_COMMIT_WAIT * LOGFILE * LOG_BUF_SIZE * NUM_LOG_BUFS * RAW_PARTITIONS * Firebird 2.1 ------------ Added as reserved words: CONNECT DISCONNECT GLOBAL INSENSITIVE RECURSIVE SENSITIVE START Added as non-reserved words: ABS (1) ACCENT * ACOS (1) ALWAYS ASCII_CHAR * ASCII_VAL * ASIN (1) ATAN (1) ATAN2 * BIN_AND * BIN_OR * BIN_SHL * BIN_SHR * BIN_XOR * CEIL (1) CEILING (1) COS (1) COSH (1) COT * DATEADD * DATEDIFF * DECODE * EXP (1) FLOOR (1) GEN_UUID * GENERATED HASH * LIST * LN (1) LOG (1) LOG10 (1) LPAD * MATCHED MATCHING * MAXVALUE MILLISECOND * MINVALUE MOD (1) OVERLAY (1) PAD PI * PLACING POWER (1) PRESERVE RAND * REPLACE * REVERSE * ROUND * RPAD * SIGN * SIN (1) SINH (1) SPACE SQRT (1) TAN (1) TANH (1) TEMPORARY TRUNC * WEEK * Firebird 2.5 ------------ Added as reserved words: SIMILAR Added as non-reserved words: AUTONOMOUS * BIN_NOT * CALLER * CHAR_TO_UUID * COMMON * DATA FIRSTNAME * GRANTED LASTNAME * MIDDLENAME * MAPPING * OS_NAME * SOURCE TWO_PHASE * UUID_TO_CHAR * Firebird 3.0 ------------ Added as reserved words: BOOLEAN CORR COVAR_POP COVAR_SAMP DETERMINISTIC FALSE OFFSET OVER RDB$RECORD_VERSION * REGR_AVGX REGR_AVGY REGR_COUNT REGR_INTERCEPT REGR_R2 REGR_SLOPE REGR_SXX REGR_SXY REGR_SYY RETURN ROW SCROLL SQLSTATE STDDEV_POP STDDEV_SAMP TRUE UNKNOWN VAR_POP VAR_SAMP Moved from non-reserved words to reserved: DELETING * INSERTING * RDB$GET_CONTEXT * RDB$SET_CONTEXT * UPDATING * Added as non-reserved words: ABSOLUTE ACOSH * ASINH * ATANH * BODY * CONTINUE DDL * DECRYPT * DENSE_RANK (1) ENCRYPT * ENGINE * FIRST_VALUE (1) IDENTITY (1) INCREMENT LAST_VALUE (1) LAG (1) LEAD (1) LINGER * NAME NTH_VALUE (1) PACKAGE * PARTITION (1) PLUGIN * PRIOR RANK (1) RELATIVE ROW_NUMBER (1) SERVERWIDE * TAGS * TRUSTED * USAGE Firebird 4.0 ------------ Added as reserved words: BINARY DECFLOAT LATERAL LOCAL LOCALTIME LOCALTIMESTAMP PUBLICATION * RDB$GET_TRANSACTION_CN * RDB$ERROR * RDB$ROLE_IN_USE * RDB$SYSTEM_PRIVILEGE * TIMEZONE_HOUR TIMEZONE_MINUTE UNBOUNDED (2) VARBINARY WINDOW WITHOUT Added as non-reserved words: BASE64_DECODE * BASE64_ENCODE * BIND * COMPARE_DECFLOAT * CONSISTENCY * COUNTER * CTR_BIG_ENDIAN * CTR_LENGTH * CTR_LITTLE_ENDIAN * CUME_DIST (1) DEFINER DISABLE * ENABLE * EXCESS * EXCLUDE EXTENDED * FIRST_DAY * FOLLOWING HEX_DECODE * HEX_ENCODE * IDLE * INVOKER IV * LAST_DAY * LEGACY * LPARAM * MAKE_DBKEY * MESSAGE * MODE * NATIVE * NORMALIZE_DECFLOAT * NTILE (1) NUMBER OTHERS OVERRIDING PERCENT_RANK (1) PRECEDING PRIVILEGE * QUANTIZE * RANGE (1) RESET * RSA_DECRYPT * RSA_ENCRYPT * RSA_PRIVATE * RSA_PUBLIC * RSA_SIGN_HASH * RSA_VERIFY_HASH * SALT_LENGTH * SECURITY SESSION SIGNATURE * SQL (1) SYSTEM (1) TIES TOTALORDER * TRAPS * ZONE