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Windows Collation Name (Transact-SQL)

Specifies the Windows collation name in the COLLATE clause. The Windows collations name is composed of the collation designator and the comparison styles.

Topic link icon Transact-SQL Syntax Conventions

<Windows_collation_name> :: = 
<ComparisonStyle> :: = 
        { CaseSensitivity_AccentSensitivity
             [ _KanatypeSensitive ] [ _WidthSensitive ]  }
  | { _BIN | _BIN2 }


Specifies the base collation rules used by the Windows collation. The base collation rules cover the following:

  • The alphabet or language whose sorting rules are applied when dictionary sorting is specified
  • The code page used to store non-Unicode character data.

Some examples are:

  • Latin1_General or French: both use code page 1252.
  • Turkish: uses code page 1254.

For a list of collation designators, see Collation Settings in Setup.


CI specifies case-insensitive, CS specifies case-sensitive.


AI specifies accent-insensitive, AS specifies accent-sensitive.


Omitted specifies kanatype-insensitive, KS specifies kanatype-sensitive.


Omitted specifies width-insensitive, WS specifies width-sensitive.


Specifies the backward-compatible binary sort order is to be used.


Specifies the binary sort order that uses code-point comparison semantics introduced in SQL Server 2005.

For a table of Windows locales with their corresponding SQL collation designators, see Collation Settings in Setup.

The following are some examples of Windows collation names:

  • Latin1_General_CI_AS
    Collation uses the Latin1 General dictionary sorting rules, code page 1252. Is case-insensitive and accent-sensitive.
  • Estonian_CS_AS
    Collation uses the Estonian dictionary sorting rules, code page 1257. Is case-sensitive and accent-sensitive.
  • Latin1_General_BIN
    Collation uses code page 1252 and binary sorting rules. The Latin1 General dictionary sorting rules are ignored.
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