-
Notifications
You must be signed in to change notification settings - Fork 93
/
sql-2003-2.ebnf
6223 lines (4691 loc) · 172 KB
/
sql-2003-2.ebnf
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
//BNF Grammar for ISO/IEC 9075-2:2003 - Database Language SQL (SQL-2003)
SQL/Foundation
//21 Direct invocation of SQL
//21.1 direct_SQL_statement (p1047)
//Specify direct execution of SQL.
direct_SQL_statement ::= directly_executable_statement semicolon
directly_executable_statement ::=
direct_SQL_data_statement
| SQL_schema_statement
| SQL_transaction_statement
| SQL_connection_statement
| SQL_session_statement
| direct_implementation_defined_statement
direct_SQL_data_statement ::=
delete_statement__searched
| direct_select_statement__multiple_rows
| insert_statement
| update_statement__searched
| merge_statement
| temporary_table_declaration
//5 Lexical Elements
//Basic definitions of characters used, tokens, symbols, etc. Most of
this section would normally be handled within the lexical analyzer
rather than in the grammar proper. Further, the original document does
not quote the various single characters, which makes it hard to process
automatically.
//5.1 SQL_terminal_character (p151)
SQL_terminal_character ::= SQL_language_character
SQL_language_character ::= simple_Latin_letter | digit |
SQL_special_character
simple_Latin_letter ::= simple_Latin_upper_case_letter |
simple_Latin_lower_case_letter
simple_Latin_upper_case_letter ::=
'A' | 'B' | 'C' | 'D' | 'E' | 'F' | 'G' | 'H' | 'I' | 'J' | 'K'
| 'L' | 'M' | 'N' | 'O' | 'P' | 'Q' | 'R' | 'S' | 'T' | 'U' | 'V' | 'W'
| 'X' | 'Y' | 'Z'
simple_Latin_lower_case_letter ::=
'a' | 'b' | 'c' | 'd' | 'e' | 'f' | 'g' | 'h' | 'i' | 'j' | 'k'
| 'l' | 'm' | 'n' | 'o' | 'p' | 'q' | 'r' | 's' | 't' | 'u' | 'v' | 'w'
| 'x' | 'y' | 'z'
digit ::= '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9'
SQL_special_character ::=
space
| double_quote
| percent
| ampersand
| quote
| left_paren
| right_paren
| asterisk
| plus_sign
| comma
| minus_sign
| period
| solidus
| colon
| semicolon
| less_than_operator
| equals_operator
| greater_than_operator
| question_mark
| left_bracket
| right_bracket
| circumflex
| underscore
| vertical_bar
| left_brace
| right_brace
space ::= //!! See the Syntax Rules.
double_quote ::= '"'
percent ::= '%'
ampersand ::= '&'
quote ::= "'"
left_paren ::= '('
right_paren ::= ')'
asterisk ::= '*'
plus_sign ::= '+'
comma ::= ','
minus_sign ::= '-'
period ::= '.'
solidus ::= '/'
colon ::= ':'
semicolon ::= ';'
less_than_operator ::= '<'
equals_operator ::= '='
greater_than_operator ::= '>'
question_mark ::= '?'
//The trigraphs are new in SQL-2003.
left_bracket_or_trigraph ::= left_bracket | left_bracket_trigraph
right_bracket_or_trigraph ::= right_bracket |
right_bracket_trigraph
left_bracket ::= '['
left_bracket_trigraph ::= "??("
right_bracket ::= ']'
right_bracket_trigraph ::= "??)"
circumflex ::= '^'
underscore ::= '_'
vertical_bar ::= '|'
left_brace ::= '{'
right_brace ::= '}'
//5.2 token and separator (p134)
//Specifying lexical units (tokens and separators) that participate in
SQL language.
token ::= nondelimiter_token | delimiter_token
nondelimiter_token ::=
regular_identifier
| key_word
| unsigned_numeric_literal
| national_character_string_literal
| bit_string_literal
| hex_string_literal
| large_object_length_token
| multiplier
regular_identifier ::= identifier_body
identifier_body ::= identifier_start identifier_part?
identifier_part ::= identifier_start | identifier_extend
//The previous version of the SQL standard defined an identifier start
as either an initial_alphabetic_character or an ideographic_character.
Neither of the defining terms is defined in SQL 2003 (and the SQL 99
definitions of those defininng terms referred to the syntax rules), but
the result of the SQL 2003 syntax rules will be similar to SQL 99 ones
except with Unicode support added.
identifier_start ::= //!! See the Syntax Rules.
identifier_extend ::= //!! See the Syntax Rules.
large_object_length_token ::= digit ... multiplier
multiplier ::= 'K' | 'M' | 'G'
delimited_identifier ::= double_quote delimited_identifier_body
double_quote
delimited_identifier_body ::= delimited_identifier_part ...
delimited_identifier_part ::= nondoublequote_character |
doublequote_symbol
//The productions for Unicode_delimited_identifier and so on are new in
SQL-2003.
Unicode_delimited_identifier ::=
U ampersand double_quote Unicode_delimiter_body double_quote
Unicode_escape_specifier
Unicode_escape_specifier ::= ( UESCAPE quote
Unicode_escape_character quote )?
Unicode_delimiter_body ::= Unicode_identifier_part ...
Unicode_identifier_part ::= delimited_identifier_part |
Unicode_escape_value
Unicode_escape_value ::=
Unicode_4_digit_escape_value
| Unicode_6_digit_escape_value
| Unicode_character_escape_value
//Syntax rule 20:
Unicode_4_digit_escape_value'Unicode_escape_character+xyzw' is
equivalent to the Unicode code point specified by U+xyzw.
Unicode_4_digit_escape_value ::= Unicode_escape_character hexit
hexit hexit hexit
//Syntax rule 21:
Unicode_6_digit_escape_value'Unicode_escape_character+xyzwrs' is
equivalent to the Unicode code point specified by U+xyzwrs.
//NOTE 64: The 6-hexit notation is derived by taking the UCS-4 notation
defined by ISO/IEC 10646-1 and removing the leading two hexits, whose
values are always 0 (zero).
Unicode_6_digit_escape_value ::=
Unicode_escape_character plus_sign hexit hexit hexit hexit
hexit hexit
//Syntax rule 22: Unicode_character_escape_value is equivalent to a
single instance of Unicode_escape_character.
Unicode_character_escape_value ::= Unicode_escape_character
Unicode_escape_character
//Syntax rule 15: Unicode_escape_character shall be a single character
from the source language character set other than a hexit, plus_sign, or
white_space.
//Syntax rule 16: If the source language character set contains
reverse_solidus, then let DEC be reverse_solidus; otherwise, let DEC be
an implementation-defined character from the source language character
set that is not a hexit, plus_sign, double_quote, or white_space.
//Syntax rule 17: If a Unicode_escape_specifier does not contain
Unicode_escape_character, then "UESCAPE quoteDECquote" is implicit.
//Syntax rule 18: In a Unicode_escape_value there shall be no separator
between the Unicode_escape_character and the first hexit, nor between
any of the hexits.
Unicode_escape_character ::= //!! See the Syntax Rules (15-18
above).
//Syntax rule 6: A nondoublequote_character is any character of the
source language character set other than a double_quote.
nondoublequote_character ::= //!! See the Syntax Rules.
//The rule for doublequote_symbol in the standard uses two adjacent
literal double quotes rather than referencing double_quote; the reasons
are not clear. It is annotated '//!! two consecutive double quote
characters'.
doublequote_symbol ::= double_quote double_quote
delimiter_token ::=
character_string_literal
| date_string
| time_string
| timestamp_string
| interval_string
| delimited_identifier
| Unicode_delimited_identifier
| SQL_special_character
| not_equals_operator
| greater_than_or_equals_operator
| less_than_or_equals_operator
| concatenation_operator
| right_arrow
| left_bracket_trigraph
| right_bracket_trigraph
| double_colon
| double_period
//The rules for not_equals_operator etc in the standard uses two
adjacent literal characters rather than referencing less_than and
greater_than; the reasons are not clear. Note that two characters must
be adjacent with no intervening space, not a pair of characters
separated by arbitrary white space.
not_equals_operator ::= "<>" //less_than_operator
greater_than_operator
greater_than_or_equals_operator ::= ">=" //greater_than_operator
equals_operator
less_than_or_equals_operator ::= "<=" //less_than_operator
equals_operator
concatenation_operator ::= "||" //vertical_bar vertical_bar
right_arrow ::= "->" //minus_sign greater_than_operator
double_colon ::= "::" //colon colon
double_period ::= ".." //period period
separator ::= ( comment | white_space )*
comment ::= simple_comment | bracketed_comment
simple_comment ::= simple_comment_introducer comment_character*
newline
simple_comment_introducer ::= minus_sign minus_sign minus_sign*
//The bracketed_comment rule included '//!! See the Syntax Rules'. This
probably says something about the slash asterisk and asterisk slash
needing to be adjacent characters rather than adjacent tokens.
bracketed_comment ::=
bracketed_comment_introducer bracketed_comment_contents
bracketed_comment_terminator
bracketed_comment_introducer ::= slash asterisk
bracketed_comment_terminator ::= asterisk slash
bracketed_comment_contents ::= ( comment_character | separator )*
comment_character ::= nonquote_character | quote
newline ::= //!! See the Syntax Rules.
//There was a surprising amount of movement of keywords between the
reserved and non-reserved word classes between SQL-99 and SQL-2003-2 FCD
and again between SQL 2003-2 FCD and SQL 2003-2 IS. There is also room
to think that much of the host language support moved out of Part 2
(SQL/Foundation).
key_word ::= reserved_word | non_reserved_word
non_reserved_word ::=
A
| ABS
| ABSOLUTE
| ACTION
| ADA
| ADMIN
| AFTER
| ALWAYS
| ASC
| ASSERTION
| ASSIGNMENT
| ATTRIBUTE
| ATTRIBUTES
| AVG
| BEFORE
| BERNOULLI
| BREADTH
| C
| CARDINALITY
| CASCADE
| CATALOG
| CATALOG_NAME
| CEIL
| CEILING
| CHAIN
| CHARACTERISTICS
| CHARACTERS
| CHARACTER_LENGTH
| CHARACTER_SET_CATALOG
| CHARACTER_SET_NAME
| CHARACTER_SET_SCHEMA
| CHAR_LENGTH
| CHECKED
| CLASS_ORIGIN
| COALESCE
| COBOL
| CODE_UNITS
| COLLATION
| COLLATION_CATALOG
| COLLATION_NAME
| COLLATION_SCHEMA
| COLLECT
| COLUMN_NAME
| COMMAND_FUNCTION
| COMMAND_FUNCTION_CODE
| COMMITTED
| CONDITION
| CONDITION_NUMBER
| CONNECTION_NAME
| CONSTRAINTS
| CONSTRAINT_CATALOG
| CONSTRAINT_NAME
| CONSTRAINT_SCHEMA
| CONSTRUCTORS
| CONTAINS
| CONVERT
| CORR
| COUNT
| COVAR_POP
| COVAR_SAMP
| CUME_DIST
| CURRENT_COLLATION
| CURSOR_NAME
| DATA
| DATETIME_INTERVAL_CODE
| DATETIME_INTERVAL_PRECISION
| DEFAULTS
| DEFERRABLE
| DEFERRED
| DEFINED
| DEFINER
| DEGREE
| DENSE_RANK
| DEPTH
| DERIVED
| DESC
| DESCRIPTOR
| DIAGNOSTICS
| DISPATCH
| DOMAIN
| DYNAMIC_FUNCTION
| DYNAMIC_FUNCTION_CODE
| EQUALS
| EVERY
| EXCEPTION
| EXCLUDE
| EXCLUDING
| EXP
| EXTRACT
| FINAL
| FIRST
| FLOOR
| FOLLOWING
| FORTRAN
| FOUND
| FUSION
| G
| GENERAL
| GO
| GOTO
| GRANTED
| HIERARCHY
| IMPLEMENTATION
| INCLUDING
| INCREMENT
| INITIALLY
| INSTANCE
| INSTANTIABLE
| INTERSECTION
| INVOKER
| ISOLATION
| K
| KEY
| KEY_MEMBER
| KEY_TYPE
| LAST
| LENGTH
| LEVEL
| LN
| LOCATOR
| LOWER
| M
| MAP
| MATCHED
| MAX
| MAXVALUE
| MESSAGE_LENGTH
| MESSAGE_OCTET_LENGTH
| MESSAGE_TEXT
| MIN
| MINVALUE
| MOD
| MORE
| MUMPS
| NAME
| NAMES
| NESTING
| NEXT
| NORMALIZE
| NORMALIZED
| NULLABLE
| NULLIF
| NULLS
| NUMBER
| OBJECT
| OCTETS
| OCTET_LENGTH
| OPTION
| OPTIONS
| ORDERING
| ORDINALITY
| OTHERS
| OVERLAY
| OVERRIDING
| PAD
| PARAMETER_MODE
| PARAMETER_NAME
| PARAMETER_ORDINAL_POSITION
| PARAMETER_SPECIFIC_CATALOG
| PARAMETER_SPECIFIC_NAME
| PARAMETER_SPECIFIC_SCHEMA
| PARTIAL
| PASCAL
| PATH
| PERCENTILE_CONT
| PERCENTILE_DISC
| PERCENT_RANK
| PLACING
| PLI
| POSITION
| POWER
| PRECEDING
| PRESERVE
| PRIOR
| PRIVILEGES
| PUBLIC
| RANK
| READ
| RELATIVE
| REPEATABLE
| RESTART
| RETURNED_CARDINALITY
| RETURNED_LENGTH
| RETURNED_OCTET_LENGTH
| RETURNED_SQLSTATE
| ROLE
| ROUTINE
| ROUTINE_CATALOG
| ROUTINE_NAME
| ROUTINE_SCHEMA
| ROW_COUNT
| ROW_NUMBER
| SCALE
| SCHEMA
| SCHEMA_NAME
| SCOPE_CATALOG
| SCOPE_NAME
| SCOPE_SCHEMA
| SECTION
| SECURITY
| SELF
| SEQUENCE
| SERIALIZABLE
| SERVER_NAME
| SESSION
| SETS
| SIMPLE
| SIZE
| SOURCE
| SPACE
| SPECIFIC_NAME
| SQRT
| STATE
| STATEMENT
| STDDEV_POP
| STDDEV_SAMP
| STRUCTURE
| STYLE
| SUBCLASS_ORIGIN
| SUBSTRING
| SUM
| TABLESAMPLE
| TABLE_NAME
| TEMPORARY
| TIES
| TOP_LEVEL_COUNT
| TRANSACTION
| TRANSACTIONS_COMMITTED
| TRANSACTIONS_ROLLED_BACK
| TRANSACTION_ACTIVE
| TRANSFORM
| TRANSFORMS
| TRANSLATE
| TRIGGER_CATALOG
| TRIGGER_NAME
| TRIGGER_SCHEMA
| TRIM
| TYPE
| UNBOUNDED
| UNCOMMITTED
| UNDER
| UNNAMED
| USAGE
| USER_DEFINED_TYPE_CATALOG
| USER_DEFINED_TYPE_CODE
| USER_DEFINED_TYPE_NAME
| USER_DEFINED_TYPE_SCHEMA
| VIEW
| WORK
| WRITE
| ZONE
reserved_word ::=
ADD
| ALL
| ALLOCATE
| ALTER
| AND
| ANY
| ARE
| ARRAY
| AS
| ASENSITIVE
| ASYMMETRIC
| AT
| ATOMIC
| AUTHORIZATION
| BEGIN
| BETWEEN
| BIGINT
| BINARY
| BLOB
| BOOLEAN
| BOTH
| BY
| CALL
| CALLED
| CASCADED
| CASE
| CAST
| CHAR
| CHARACTER
| CHECK
| CLOB
| CLOSE
| COLLATE
| COLUMN
| COMMIT
| CONNECT
| CONSTRAINT
| CONTINUE
| CORRESPONDING
| CREATE
| CROSS
| CUBE
| CURRENT
| CURRENT_DATE
| CURRENT_DEFAULT_TRANSFORM_GROUP
| CURRENT_PATH
| CURRENT_ROLE
| CURRENT_TIME
| CURRENT_TIMESTAMP
| CURRENT_TRANSFORM_GROUP_FOR_TYPE
| CURRENT_USER
| CURSOR
| CYCLE
| DATE
| DAY
| DEALLOCATE
| DEC
| DECIMAL
| DECLARE
| DEFAULT
| DELETE
| DEREF
| DESCRIBE
| DETERMINISTIC
| DISCONNECT
| DISTINCT
| DOUBLE
| DROP
| DYNAMIC
| EACH
| ELEMENT
| ELSE
| END
| END-EXEC
| ESCAPE
| EXCEPT
| EXEC
| EXECUTE
| EXISTS
| EXTERNAL
| FALSE
| FETCH
| FILTER
| FLOAT
| FOR
| FOREIGN
| FREE
| FROM
| FULL
| FUNCTION
| GET
| GLOBAL
| GRANT
| GROUP
| GROUPING
| HAVING
| HOLD
| HOUR
| IDENTITY
| IMMEDIATE
| IN
| INDICATOR
| INNER
| INOUT
| INPUT
| INSENSITIVE
| INSERT
| INT
| INTEGER
| INTERSECT
| INTERVAL
| INTO
| IS
| ISOLATION
| JOIN
| LANGUAGE
| LARGE
| LATERAL
| LEADING
| LEFT
| LIKE
| LOCAL
| LOCALTIME
| LOCALTIMESTAMP
| MATCH
| MEMBER
| MERGE
| METHOD
| MINUTE
| MODIFIES
| MODULE
| MONTH
| MULTISET
| NATIONAL
| NATURAL
| NCHAR
| NCLOB
| NEW
| NO
| NONE
| NOT
| NULL
| NUMERIC
| OF
| OLD
| ON
| ONLY
| OPEN
| OR
| ORDER
| OUT
| OUTER
| OUTPUT
| OVER
| OVERLAPS
| PARAMETER
| PARTITION
| PRECISION
| PREPARE
| PRIMARY
| PROCEDURE
| RANGE
| READS
| REAL
| RECURSIVE
| REF
| REFERENCES
| REFERENCING
| REGR_AVGX
| REGR_AVGY
| REGR_COUNT
| REGR_INTERCEPT
| REGR_R2
| REGR_SLOPE
| REGR_SXX
| REGR_SXY
| REGR_SYY
| RELEASE
| RESULT
| RETURN
| RETURNS
| REVOKE
| RIGHT
| ROLLBACK
| ROLLUP
| ROW
| ROWS
| SAVEPOINT
| SCROLL
| SEARCH
| SECOND
| SELECT
| SENSITIVE
| SESSION_USER
| SET
| SIMILAR
| SMALLINT
| SOME
| SPECIFIC
| SPECIFICTYPE
| SQL
| SQLEXCEPTION
| SQLSTATE
| SQLWARNING
| START
| STATIC
| SUBMULTISET
| SYMMETRIC
| SYSTEM
| SYSTEM_USER
| TABLE
| THEN
| TIME
| TIMESTAMP
| TIMEZONE_HOUR
| TIMEZONE_MINUTE
| TO
| TRAILING
| TRANSLATION
| TREAT
| TRIGGER
| TRUE
| UESCAPE
| UNION
| UNIQUE
| UNKNOWN
| UNNEST
| UPDATE
| UPPER
| USER
| USING
| VALUE
| VALUES
| VAR_POP
| VAR_SAMP
| VARCHAR
| VARYING
| WHEN
| WHENEVER
| WHERE
| WIDTH_BUCKET
| WINDOW
| WITH
| WITHIN
| WITHOUT
| YEAR
//5.3 literal (p143)
literal ::= signed_numeric_literal | general_literal
unsigned_literal ::= unsigned_numeric_literal | general_literal
general_literal ::=
character_string_literal
| national_character_string_literal
| Unicode_character_string_literal
| binary_string_literal
| datetime_literal
| interval_literal
| boolean_literal
character_string_literal ::=
( introducer character_set_specification )?
quote ( character_representation )? quote
( separator quote ( character_representation )? quote )*
introducer ::= underscore
character_representation ::= nonquote_character | quote_symbol
nonquote_character ::= //!! See the Syntax Rules.
//The quote_symbol rule consists of two immediately adjacent quote marks
with no spaces. As usual, this would be best handled in the lexical
analyzer, not in the grammar.
quote_symbol ::= quote quote
national_character_string_literal ::=
N quote character_representation* quote
( separator quote character_representation* quote )*
Unicode_character_string_literal ::=
( introducer character_set_specification )?
U ampersand quote Unicode_representation? quote
( separator quote Unicode_representation? quote )*
( ESCAPE escape_character )?
Unicode_representation ::= character_representation |
Unicode_escape_value
binary_string_literal ::=
X quote ( hexit hexit )* quote
( separator quote ( hexit hexit )* quote )*
( ESCAPE escape_character )?
hexit ::= digit | 'A' | 'B' | 'C' | 'D' | 'E' | 'F' | 'a' | 'b' |
'c' | 'd' | 'e' | 'f'
signed_numeric_literal ::= sign? unsigned_numeric_literal
unsigned_numeric_literal ::= exact_numeric_literal |
approximate_numeric_literal
exact_numeric_literal ::=
unsigned_integer ( period unsigned_integer? )?
| period unsigned_integer
sign ::= plus_sign | minus_sign
approximate_numeric_literal ::= mantissa E exponent
mantissa ::= exact_numeric_literal
exponent ::= signed_integer
signed_integer ::= sign? unsigned_integer
unsigned_integer ::= digit ...
datetime_literal ::= date_literal | time_literal |
timestamp_literal
date_literal ::= DATE date_string
time_literal ::= TIME time_string
timestamp_literal ::= TIMESTAMP timestamp_string
date_string ::= quote unquoted_date_string quote
time_string ::= quote unquoted_time_string quote
timestamp_string ::= quote unquoted_timestamp_string quote
time_zone_interval ::= sign hours_value colon minutes_value
date_value ::= years_value minus_sign months_value minus_sign
days_value
time_value ::= hours_value colon minutes_value colon seconds_value
interval_literal ::= INTERVAL sign? interval_string
interval_qualifier
interval_string ::= quote unquoted_interval_string quote
unquoted_date_string ::= date_value
unquoted_time_string ::= time_value time_zone_interval?
unquoted_timestamp_string ::= unquoted_date_string space
unquoted_time_string
unquoted_interval_string ::= sign? ( year_month_literal |
day_time_literal )
year_month_literal ::= years_value | years_value minus_sign?
months_value
day_time_literal ::= day_time_interval | time_interval
day_time_interval ::=
days_value ( space hours_value ( colon minutes_value ( colon
seconds_value )? )? )?
time_interval ::=
hours_value ( colon minutes_value ( colon seconds_value )? )?
| minutes_value ( colon seconds_value )?
| seconds_value
years_value ::= datetime_value
months_value ::= datetime_value
days_value ::= datetime_value
hours_value ::= datetime_value
minutes_value ::= datetime_value
seconds_value ::= seconds_integer_value ( period ( seconds_fraction
)? )?
seconds_integer_value ::= unsigned_integer
seconds_fraction ::= unsigned_integer
datetime_value ::= unsigned_integer
boolean_literal ::= TRUE | FALSE | UNKNOWN
//5.4 Names and identifiers (p151)
identifier ::= actual_identifier
actual_identifier ::= regular_identifier | delimited_identifier
SQL_language_identifier ::=
SQL_language_identifier_start ( underscore |
SQL_language_identifier_part )*
SQL_language_identifier_start ::= simple_Latin_letter
SQL_language_identifier_part ::= simple_Latin_letter | digit