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What is the sysname data type?

Source: Internet
Author: User
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Sysname

The SQL Server instance includes the User-DefinedSysname.SysnameTable columns, variables, and stored procedure parameters used to store object names.SysnameThe exact definition of SQL Server is related to the identifier rules. Therefore, the instances of SQL Server are different.SysnameAndNvarchar (128)Same role. SQL Server 6.5 or earlier versions only support small identifiers. Therefore, in earlier versions,SysnameIs definedVarchar (30).

Important:

In a database that is case sensitive or uses binary sorting rulesSysnameIt is recognized as the Data Type of the SQL server system only when it is displayed in lower case.

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