Table of Contents
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syntax diagram of, 300
CHAR data type, 200, 201
CHAR function
examples of, 301
syntax diagram of, 301
CHAR VARYING data type, 201
CHAR_LENGTH function
examples of, 302
syntax diagram of, 302
Character sets
setting default, 223
support standards, 448
Character string data types
CHAR and VARCHAR, differences, 201
examples of literals, 224
maximum storage lengths, 201
Character string functions
summary of, 280
ASCII, 289
CHAR, 301
CHAR_LENGTH , 302
COALESCE, 303
CODE_VALUE, 304
CONCAT, 305
INSERT, 345
LCASE, 349
LEFT, 350
LOCATE, 351
LOWER, 354
LPAD, 359
LTRIM, 360
OCTET_LENGTH, 380
POSITION, 383
REPEAT, 390
REPLACE, 390
RIGHT, 391
RPAD, 394
RTRIM, 395
SPACE, 407
TRANSLATE, 417
TRIM, 418
UCASE, 419
UPPER, 427
UPSHIFT, 428
Character string literals, 223
Character value expression
examples of, 208
syntax diagram of, 208
CHECK constraint, 193
Clauses
DEFAULT, 258
SAMPLE, 260
SEQUENCE BY, 268
TRANSPOSE, 271
Cluster sampling, 261
Clustering key
description of, 222
limits, 441
COALESCE function
450
Index
example of, 303
COALESCE function, syntax diagram of, 303
CODE_VALUE function, syntax diagram of, 304
column-list, general rules, 246
Columns
column reference, 191
default values, 191
description of, 191
qualified name, 191
COMMIT WORK statement
constraints check, 56
syntax diagram of, 56
Comparable data types, 124, 199
Comparison predicates
comparison operators, 234
data conversions, 236
examples of, 236
operand requirements, 235
syntax diagram of, 234
Compatible data types, 124, 199
CONCAT function
examples of, 305
syntax diagram of, 305
Concatenation operator (||)
description of, 305
examples of, 302, 305
Concurrency
DELETE statement, 91, 92
description of, 33
INSERT statement, 123, 124
SELECT statement, 150, 151
SET TRANSACTION statement, 168
UPDATE statement, 171
Constraints
CHECK, 193
description of, 193
limits, 441
NOT NULL, 193
PRIMARY KEY, 193
Control statements, 43
CONVERTTIMESTAMP function
examples of, 307
JULIANTIMESTAMP inverse relationship to, 307
syntax diagram of, 307
Correlation names
examples of, 194
purpose of, 194
table reference use of, 194
COS function
examples of, 308
syntax diagram of, 308
COSH function
examples of, 309
syntax diagram of, 309
COUNT function
DISTINCT clause within, 310
examples of, 310
syntax diagram of, 310
CREATE INDEX statement
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