Collate Table Transcript For Free

A collation specifies the bit patterns that represent each character in a dataset. Collations also determine the rules that sort and compare data. SQL Server supports storing objects that have different collations in a single database.

The Latin1_General_CI_AS collation is a Windows collation and the rules around sorting unicode and non-unicode data are the same. A Windows collation as per this example can still use an index if comparing unicode and non-unicode data albeit with a slight performance hit.

The collate clause is used for case sensitive and case insensitive searches in the columns of the SQL server. There are two types of collate clause present: SQL_Latin1_General_CP1_CS_AS for case sensitive. SQL_Latin1_General_CP1_CI_AS for case insensitive.

Server collation in SQL Server For example, the default collation for systems using US English (en-US) is SQL_Latin1_General_CP1_CI_AS. For more information, including the list of OS locale to default collation mappings, see the "Server-level collations" section of Collation and Unicode Support.

A common use of the query level collation (collate SQL) is to compare case-sensitive strings. For example, imagine two tables with similar collation and compare their columns using join or subquery. Data with the lower-case string exists in the chosen columns of those tables.

Ing the SQL Server Books Online, the characters included in range searches depend on the sorting rules of the collation. Collation Latin1_General_CS_AS uses dictionary order so both upper and lower case characters of the specified range are included.

CP1 specifies code page 1252, for all other code pages the complete code page number is specified. For example, CP1251 specifies code page 1251 and CP850 specifies code page 850. CaseSensitivity CI specifies case-insensitive, CS specifies case-sensitive.