On this SQL Server exception message, we can learn that the SQL Check constraint name is CK__Customer__Custom__71D1E811. Error detail gives the database name, as well as the table and the column name where the SQL check constraint is defined. If SQL programmer has to drop SQL constra...
该DROP INDEX语句不适用于通过定义PRIMARY KEY或UNIQUE约束创建的索引。 若要删除约束和相应的索引,请使用ALTER TABLE和DROP CONSTRAINT子句。 重要 将在SQL Server 的未来版本中删除定义的<drop_backward_compatible_index>语法。 请避免在新的开发工作中使用该功能,并考虑修改当前使用该功能的应用程序。 请改用在<dro...
語句DROP INDEX不適用於定義 或UNIQUE條件約束所建立的PRIMARY KEY索引。 若要移除條件約束和對應的索引,請使用ALTER TABLE搭配DROP CONSTRAINT子句。 重要 中<drop_backward_compatible_index>定義的語法將會在未來的 SQL Server 版本中移除。 請避免在新的開發工作中使用這個語法,並規劃修改目前在使用這個語法的應用程...
2. Oops, I was wrong in my original answer, here is the correct syntax for SQL Server:
+ ' DROP CONSTRAINT ' + QUOTENAME(fk.name) + ';' FROM sys.foreign_keys AS fk INNER JOIN sys.tables AS ct ON fk.parent_object_id = ct.[object_id] INNER JOIN sys.schemas AS cs ON ct.[schema_id] = cs.[schema_id]; INSERT #x(drop_script) SELECT @drop; ...
An index may be part of a foreign key constraint. Understanding the relationships and constraints involved with the index is imperative. An index may still be in use. Be sure you’re tracking index data for a reasonable period of time. Remember, unless you’re capturing Dynamic Management View...
To drop a DEFAULT constraint, use the following SQL: SQL Server / Oracle / MS Access: ALTERTABLEPersons ALTERCOLUMNCityDROPDEFAULT; MySQL: ALTERTABLEPersons ALTERCityDROPDEFAULT; DROP INDEX TheDROP INDEXcommand is used to delete an index in a table. ...
SQL Copiar -- Set ONLINE = OFF to execute this example on editions other than Enterprise Edition. ALTER TABLE Production.TransactionHistoryArchive DROP CONSTRAINT PK_TransactionHistoryArchive_TransactionID WITH (ONLINE = ON); F. Quitar un índice XML...
TSqlStatement TSqlStatementSnippet TSqlTokenType TSqlTriggerEventGroupHelper TSqlTriggerEventTypeHelper UnaryExpression UnaryExpressionType UniqueConstraintDefinition UniqueRowFilter UnpivotedTableReference UnqualifiedJoin UnqualifiedJoinType UpdateCall UpdateDeleteSpecificationBase UpdateForClause UpdateMergeAction...
TSqlStatement TSqlStatementSnippet TSqlTokenType TSqlTriggerEventGroupHelper TSqlTriggerEventTypeHelper UnaryExpression UnaryExpressionType UniqueConstraintDefinition UniqueRowFilter UnpivotedTableReference UnqualifiedJoin UnqualifiedJoinType UpdateCall UpdateDeleteSpecificationBase UpdateFo...