MySQL 5.0 Reference Manual  /  INFORMATION_SCHEMA Tables  /  The INFORMATION_SCHEMA COLLATIONS Table

19.2 The INFORMATION_SCHEMA COLLATIONS Table

The COLLATIONS table provides information about collations for each character set.

INFORMATION_SCHEMA NameSHOW NameRemarks
COLLATION_NAMECollation
CHARACTER_SET_NAMECharsetMySQL extension
IDIdMySQL extension
IS_DEFAULTDefaultMySQL extension
IS_COMPILEDCompiledMySQL extension
SORTLENSortlenMySQL extension
  • COLLATION_NAME is the collation name.

  • CHARACTER_SET_NAME is the name of the character set with which the collation is associated.

  • ID is the collation ID.

  • IS_DEFAULT indicates whether the collation is the default for its character set.

  • IS_COMPILED indicates whether the character set is compiled into the server.

  • SORTLEN is related to the amount of memory required to sort strings expressed in the character set.

Collation information is also available from the SHOW COLLATION statement. The following statements are equivalent:

SELECT COLLATION_NAME FROM INFORMATION_SCHEMA.COLLATIONS
  [WHERE COLLATION_NAME LIKE 'wild']

SHOW COLLATION
  [LIKE 'wild']

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