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25.4 The INFORMATION_SCHEMA COLLATIONS Table

Contents

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

The COLLATIONS table has these columns:

  • COLLATION_NAME

    The collation name.

  • CHARACTER_SET_NAME

    The name of the character set with which the collation is associated.

  • ID

    The collation ID.

  • IS_DEFAULT

    Whether the collation is the default for its character set.

  • IS_COMPILED

    Whether the character set is compiled into the server.

  • SORTLEN

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

  • PAD_ATTRIBUTE

    The collation pad attribute.

Notes

Collation information is also available from the SHOW COLLATION statement. See Section 13.7.6.4, “SHOW COLLATION Syntax”. The following statements are equivalent:

  1. SELECT COLLATION_NAME FROM INFORMATION_SCHEMA.COLLATIONS
  2.   [WHERE COLLATION_NAME LIKE 'wild']
  3.  
  4. SHOW COLLATION
  5.   [LIKE 'wild']

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