如果在 FOREIGN KEY 约束的 ON UPDATE 和/或 ON DELETE 子句上指定 NO ACTION 选项,则 SQL Server 将返回UPDATE_RULE和/或DELETE_RULE列的SQL_NO_ACTION。 当任何 SQLForeignKeys 参数中存在无效值时, SQLForeignKeys 在执行时返回SQL_SUCCESS。 在这些参数中使用无
適用於:Microsoft Fabric 中的 SQL Server Azure SQL 資料庫 Azure SQL 受控執行個體 Azure Synapse Analytics Analytics Platform System (PDW) SQL Database 公開金鑰加密是一種訊息加密形式,使用者可用此加密形式來建立「公開」金鑰和「私密」金鑰。 私密金鑰會保留在私密位置,而公開金鑰則可以散發給使...
select dateadd(mm,1,cast(cast(year(getdate()) as varchar)+'-'+cast(month(getdate()) as varchar)+'-01' as datetime)) --4把步骤的转换成日期型,如:-03-01 00:00:00.000 select cast(cast(year(getdate()) as varchar)+'-'+cast(month(getdate()) as varchar)+'-01' as datetime) --...
SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) Warehouse in Microsoft Fabric SQL database in Microsoft Fabric Contains a row per object that is a FOREIGN KEY constraint, withsys.object.type= F. ...
public java.sql.ResultSet getImportedKeys(java.lang.String cat, java.lang.String schema, java.lang.String table) 参数 cat 一个包含目录名称的字符串 。 架构 一个包含架构名称的字符串。 table 一个包含表名称的字符串。 返回值 一个SQLServerResultSet 对象。 例外 SQLServerException 备注 此getImported...
Process ID: <ProcessID> SQL Server Engine Programmability All 2118401 Before you apply this update, the key name in the JSON_OBJECT function output isn't quoted when the data type is a numeric, Boolean, or internal JSON data type. After you apply this update, keys in JSON_OBJ...
In SQL Server, encryption keys include a combination of public, private, and symmetric keys that are used to protect sensitive data. The symmetric key is created during SQL Server initialization when you first start the SQL Server instance. The key is used by SQL Server to encrypt sensitive da...
Therefore, Trace Flag 834 is best suited for servers that are dedicated to SQL Server.Note: When enabled, the large-page memory model preallocates all SQLOS memory at instance startup and doesn't return that memory to the OS.Note: If you're using the Columnstore Index feature of SQL ...
Foreign keys and INFORMATION_SCHEMA viewsForeign key relationships exist between a referencing table that has the FK constraint and the referenced table that has a primary key or uniqueness constraint. The FK relationship can contain keys with more than one column, but the total number of columns ...
SQL Server Management Studio 將會取得舊資料行主要金鑰所保護之資料行加密金鑰的中繼資料,以及舊與新資料行主要金鑰的中繼資料。 SSMS 接著將使用資料行主要金鑰中繼資料來存取包含舊資料行主要金鑰的金鑰存放區,並解密資料行加密金鑰。 接著,SSMS 將存取保存新資料行主要金鑰的金鑰存放區,以產...