T-SQL statement records

The T-SQL statement modifies the field type and length.

The T-SQL statement modifies the field type and length.:

The application scenario is as follows: In DBO. articl, the length of the articletitle field is 50 in the varchar type at the beginning of the design, which is inconsistent with the actual requirements,
The data type of this field needs to be modified to nvarchar, and the field length is 100.

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You can modify the following SQL statement:

-- Alter table <Table Name> alter column <field Name> <new field type> (length );

Alter table Article alter column articletitle nvarchar (100 );

 

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After execution, refresh:

The type and length of the articletitle field in the dbo. articl table are modified as follows: The field type is nvarchar and the length is 100.
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