syntaxsql 복사 ALTER TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } { ALTER COLUMN column_name { [ type_schema_name. ] type_name [ ( { precision [ , scale ] } ) ] [ COL
The options for alter column version of alter table statement. AddRowguidcol, DropRowguidcol can only happen if there is no DataType.
AlterTableAlterColumnStatement 构造函数 属性 AlterTableAlterColumnOption Collation ColumnIdentifier DataType Encryption GeneratedAlways IsHidden IsMasked MaskingFunction Options StorageOptions 方法 AlterTableAlterIndexStatement AlterTableAlterPartitionStatement AlterTableChangeTrackingModificationStatement Alte...
Until this index is created on the ROWID column, the insert, and update operations and the LOAD utility cannot be used to add rows to the table. If the table space name is not specified on the CREATE TABLE statement, Db2 implicitly creates the necessary object to make the table complete,...
To add a column of type DB2SECURITYLABEL to a table, the privileges of the authorization ID of the statement must include at least a security label from the security policy that is associated with the table. To remove the security policy from a table, the privileges that are held by the ...
SERVER CONFIGURATION SERVER ROLE SERVICE SERVICE MASTER KEY SYMMETRIC KEY TABLE TABLE column_constraint TABLE column_definition TABLE computed_column_definition TABLE index_option TABLE table_constraint TRIGGER USER VIEW WORKLOAD GROUP XML SCHEMA COLLECTION ...
CREATE TABLE (Transact-SQL). Note If NULL or NOT NULL is specified with ALTER COLUMN,new_data_type[(precision[,scale])] must also be specified. If the data type, precision, and scale are not changed, specify the current column values. ...
column_definition (Transact-SQL) computed_column_definition (Transact-SQL) table_constraint (Transact-SQL) index_option (Transact-SQL) ALTER TRIGGER (Transact-SQL) ALTER USER (Transact-SQL) ALTER VIEW (Transact-SQL) ALTER WORKLOAD GROUP (Transact-SQL) ...
thechar,varchar,nchar, andnvarchardata types. To change the collation of a user-defined alias data type column, you must execute separate ALTER TABLE statements to change the column to a SQL Server system data type and change its collation, and then change the column back to an alias data ...
Transact-SQL Syntax Conventions Syntax Copy ALTER TABLE [ database_name . [ schema_name ] . | schema_name . ] table_name { ALTER COLUMN column_name { [ type_schema_name. ] type_name [ ( { precision [ ,scale ] | max | xml_schema_collection } ) ] [ COLLATE collation_name ] [...