syntaxsql -- Syntax for SQL Server, Azure SQL Database, Warehouse in Microsoft FabricDROPTABLE[IFEXISTS] {database_name.schema_name.table_name|schema_name.table_name|table_name} [ ,...n ] [ ; ] syntaxsql -- Syntax for Azure Synapse Analytics and Parallel Data WarehouseDROPTABLE{database...
syntaxsql העתק -- Syntax for SQL Server, Azure SQL Database, Warehouse in Microsoft Fabric DROP TABLE [ IF EXISTS ] { database_name.schema_name.table_name | schema_name.table_name | table_name } [ ,...n ] [ ; ] ...
Transact-SQL 語法慣例 語法 syntaxsql -- Syntax for SQL Server, Azure SQL Database, Warehouse in Microsoft FabricDROPTABLE[IFEXISTS] {database_name.schema_name.table_name|schema_name.table_name|table_name} [ ,...n ] [ ; ] syntaxsql ...
syntaxsql Kopyala -- Syntax for SQL Server, Azure SQL Database, Warehouse in Microsoft Fabric DROP TABLE [ IF EXISTS ] { database_name.schema_name.table_name | schema_name.table_name | table_name } [ ,...n ] [ ; ] syntaxsql Kopyala ...
SQLCopy USEAdventureWorks; GOCREATETABLE#temptable (col1int); GOINSERTINTO#temptableVALUES(10); GOSELECT*FROM#temptable; GO IF OBJECT_ID(N'tempdb..#temptable', N'U') IS NOT NULLDROPTABLE#temptable; GO--Test the drop.SELECT*FROM#temptable; ...
Transact-SQL 语法约定语法syntaxsql 复制 DROP EXTERNAL TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } [;] 参数[ database_name . [schema_name] . | schema_name . ] table_name 要删除的外部表的一到三部分名称。 表名称可以根据需要包括架构或者数据库和...
You can create a new FileTable by using Transact-SQL or SQL Server Management Studio. Since a FileTable has a fixed schema, you do not have to specify a list of columns. The simple syntax for creating a FileTable lets you specify: A directory name. In the FileTable folder hierarchy, ...
syntaxsql复制 DROPINDEXindex_nameON{database_name.schema_name.table_name|schema_name.table_name|table_name} [ ; ] 参数 IF EXISTS 适用于:SQL Server 2016 (13.x) 及更高版本。 仅当索引已存在时对其进行有条件地删除。 index_name 要删除的索引的名称。
use computer 后面要加个分号 ;
删除表的基本SQL语法格式为: DROPTABLEtable_name;DROPTABLE[IFEXISTS] table_name; DROP TABLE table_name;删除一个名为 table_name的表 DROP TABLE IF EXISTS table_name;执行了这条语句如果存在table_name表就删除,不存在不会报错也是执行。 mysql> show tables; ...