SqlServer.TransactSql.ScriptDom AbortAfterWaitType AcceleratedDatabaseRecoveryDatabaseOption AddAlterFullTextIndexAction AddFileSpec AddMemberAlterRoleAction AddSearchPropertyListAction AddSensitivityClassificationStatement AddSignatureStatement AdHocDataSource AdHocTableReference AffinityKind AlgorithmKeyOption Allow...
We use the following SQL statement: ALTERTABLEPersons ALTERCOLUMNDateOfBirth year; Notice that the "DateOfBirth" column is now of type year and is going to hold a year in a two- or four-digit format. DROP COLUMN Example Next, we want to delete the column named "DateOfBirth" in the ...
ALTER TABLE では、列と制約を変更、追加、または削除して、テーブルの定義を変更します。 また、ALTER TABLE では、パーティションを再割り当ておよび再構築したり、制約とトリガーを無効化および有効化したりもします。
If an UPDATE statement is executed on a row in table B and an ON UPDATE CASCADE action is specified for A.ItemID, SQL Server Compact 3.5 checks for one or more dependent rows in table A. If any exist, the dependent rows in table A are updated, as is the row referenced in table B...
SqlServer.TransactSql.ScriptDom Microsoft.SqlServer.TransactSql.ScriptDom AbortAfterWaitType AcceleratedDatabaseRecoveryDatabaseOption AddAlterFullTextIndexAction AddFileSpec AddMemberAlterRoleAction AddSearchPropertyListAction AddSensitivityClassificationStatement AddSignatureStatement AdHocDataSource A...
Without using an ALTER TABLE statement, the statements CREATE INDEX, DROP INDEX, ALTER INDEX, and PAD_INDEX are not supported for indexes on memory-optimized tables. ADD Specifies that one or more column definitions, computed column definitions, or table constraints are added. Or, the columns th...
SqlServer.TransactSql.ScriptDom Microsoft.SqlServer.TransactSql.ScriptDom AbortAfterWaitType AcceleratedDatabaseRecoveryDatabaseOption AddAlterFullTextIndexAction AddFileSpec AddMemberAlterRoleAction AddSearchPropertyListAction AddSensitivityClassificationStatement AddSignatureStatement AdHocDataSource AdHo...
ALTER TABLE statementThe ALTER TABLE statement changes the description of a table at the current server.Invocation for ALTER TABLE This statement can be embedded in an application program or issued interactively. It is an executable statement that can be dynamically prepared only if DYNAMICRULES RUN...
ALTER TABLE Syntax The syntax of the SQLALTER TABLEstatement is: ALTERTABLEtable_name clause supporting_codes; Here, table_nameis the name of the table to be modified clausegives further information on how the table is to be altered likeADD,RENAME COLUMN, etc. ...
Sets database options in Microsoft SQL Server, Azure SQL Database, and Azure Synapse Analytics. For other ALTER DATABASE options, see ALTER DATABASE. Note Setting some options with ALTER DATABASE might require exclusive database access. If the ALTER DATABASE statement doesn't complete in a ...