In this article, you will learn about Computed Columns inSQL Server. A computed column is computed from an expression that can use other columns in the same table. The expression can be a non-computed column name, constant, function, and any combination of these connected by one or more op...
computed_column_expression Is an expression that defines the value of a computed column. A computed column is a virtual column that is not physically stored in the table but is computed from an expression that uses other columns in the same table. An expression must yield a value. For exampl...
The hint can't be specified for a table that is the target of anINSERT,UPDATE, orDELETEstatement. The hint can't be specified in combination with either anINDEXhint or anotherFORCESEEKhint. At least one column must be specified and it must be the leading key column. ...
The hint can't be specified for a table that is the target of anINSERT,UPDATE, orDELETEstatement. The hint can't be specified in combination with either anINDEXhint or anotherFORCESEEKhint. At least one column must be specified and it must be the leading key column. ...
TABLE column_definition TABLE computed_column_definition TABLE index_option TABLE table_constraint トリガー User VIEW ワークロード グループ XML スキーマ コレクション バックアップと復元 創造する 照合順序 DROP 権限 サービスブローカー SET xQuery PDF をダウンロード Learn...
Change Column Order in a Table Describes how to create a computed column in a table. Specify Computed Columns in a Table Describes how to specify a default value for a column. This value is used if another value is not supplied. Specify Default Values for ColumnsSee AlsoPrimary...
4:Changing a Column Definition 5:Creating aComputed Column 6:Dropping aTable Column 1:CREATE The simplified syntax is as follows: CREATETABLE[ database_name . [ schema_name ] . | schema_name . ] table_name ( column_name <data_type> [NULL|NOTNULL] [ ,...n ] ) ...
When joining a hash partitioned table to another table, to achieve partition elimination the second table will need to be hash partitioned on the same key and the hash key should be part of the join criteria. Hash partitioning prevents the use of partitioning for other management features such...
4:Changing a Column Definition 5:Creating aComputed Column 6:Dropping aTable Column 1:CREATE The simplified syntax is as follows: CREATETABLE[ database_name . [ schema_name ] . | schema_name . ] table_name ( column_name <data_type> [NULL|NOTNULL] [ ,...n ] ) ...
In the definition of another user-defined function To parameterize a view or improve the functionality of an indexed view To define a column in a table To define aCHECKconstraint on a column To replace a stored procedure Use an inline function as a filter predicate for a security policy ...