IFEXISTS(SELECT*FROMsys.databasesWHEREname='SampleDB')BEGINDROPDATABASESampleDB;ENDCREATEDATABASESampleDB; 1. 2. 3. 4. 5. 6. 方法三:使用 IF语句自动处理 您可以创建一个存储过程来自动处理该逻辑。以下是一个简单的示例。 CREATEPROCEDURECreateDatabase@dbNameNVARCHAR(255)ASBEGINIFNOTEXISTS(SELECT*FROM...
error 发生的时候SQL Server会中断连接。 使用NOWAIT选项可以直接发送信息,而不用等大赛buffer RAISERROR ('Error in usp_InsertCategories stored procedure', 16, 0); -- Formatting the RAISERROR string RAISERROR ('Error in % stored procedure', 16, 0, N'usp_InsertCategories'); -- In addition, yo...
createtime DATETIME NOT NULL DEFAULT GETDATE() ) ---根据姓名月份查询分数 CREATE INDEX IX_score_name ON score(name,months) include(score) ---根据月份查询最高分数 CREATE INDEX IX_score_months ON score(months) include(name,score) ---创建姓名和月份组合的唯一索引 CREATE UNIQUE INDEX IX_score_...
CREATE PROCEDURE [dbo].ClearMemory AS BEGIN --清除所有缓存 DBCC DROPCLEANBUFFERS --打开高级配置 exec sp_configure 'show advanced options', 1 --设置最大内存值,清除现有缓存空间 exec sp_configure 'max server memory', 25600 EXEC ('RECONFIGURE') --设置等待时间 WAITFOR DELAY '00:00:01' --重新设...
Applies to: Azure SQL Database, SQL Server (starting with SQL Server 2016 (13.x) SP1).Alters the procedure if it already exists.schema_nameThe name of the schema to which the procedure belongs. Procedures are schema-bound. If a schema name isn't specified when the procedure is created,...
Applies to: Azure SQL Database, SQL Server (starting with SQL Server 2016 (13.x) SP1).Alters the procedure if it already exists.schema_nameThe name of the schema to which the procedure belongs. Procedures are schema-bound. If a schema name isn't specified when the procedure is created,...
create proc | procedure pro_name [{@参数数据类型} [=默认值] [output], {@参数数据类型} [=默认值] [output], ... ] as SQL_statements 2、 创建不带参数存储过程 代码语言:javascript 代码运行次数:0 运行 AI代码解释 --创建存储过程 if (exists (select * from sys.objects where name = 'proc...
Transact-SQL syntax for stored procedures in SQL Server and Azure SQL Database: syntaxsql Copy CREATE [ OR ALTER ] { PROC | PROCEDURE } [schema_name.] procedure_name [ ; number ] [ { @parameter_name [ type_schema_name. ] data_type } [ VARYING ] [ NULL ] [ = default ] [ OUT...
Transact-SQL syntax for stored procedures in SQL Server and Azure SQL Database: syntaxsql Copy CREATE [ OR ALTER ] { PROC | PROCEDURE } [schema_name.] procedure_name [ ; number ] [ { @parameter_name [ type_schema_name. ] data_type } [ VARYING ] [ NULL ] [ = default ] [ OUT...
Transact-SQL syntax for stored procedures in SQL Server and Azure SQL Database: syntaxsql Copy CREATE [ OR ALTER ] { PROC | PROCEDURE } [schema_name.] procedure_name [ ; number ] [ { @parameter_name [ type_schema_name. ] data_type } [ VARYING ] [ NULL ] [ = default ] [ OUT...