Syntax DROPTABLEtable_name; Note:Be careful before dropping a table. Deleting a table will result in loss of complete information stored in the table! SQL DROP TABLE Example The following SQL statement drops the existing table "Shippers": ...
-- 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_name.sche...
-- 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_name.sche...
In order to remove existing tables, you use the MySQLDROP TABLEstatement. The syntax of theDROP TABLEis as follows: DROP [TEMPORARY] TABLE [IF EXISTS] table_name [, table_name] ... [RESTRICT | CASCADE] TheDROP TABLEstatement removes a table and its data permanently from the database. I...
SQL Delete StatementThe DELETE Statement is used to delete rows from a table.Syntax of a SQL DELETE StatementDELETE FROM table_name [WHERE condition]; table_name -- the table name which has to be updated.NOTE: The WHERE clause in the sql delete command is optional and it identifies the ...
The statement takes any of the following syntaxes based on what attributes we wish to modify in a table. ALTERTABLEname RENAMETOnew_nameALTERTABLEnameADDCOLUMNS (col_spec[, col_spec ...])ALTERTABLEnameDROP[COLUMN]column_name --- 译注:这个drop命令,我在工作中,并没有生效,而是利用表级别的REPL...
The statement drops the specified table and deletes all the data contained within from the system.تحذير This operation cannot be undone!SyntaxDrop_Table_Statement := 'DROP' 'TABLE' ['IF' 'EXISTS'] Identifier. RemarksIdentifier Identifies the table to be dropped. If the ...
Syntax drop_table::= Description of the illustration drop_table.eps Semantics IF EXISTS SpecifyingIF EXISTSdrops the table if it exists. UsingIF NOT EXISTSwithDROP TABLEresults inORA-11544: Incorrect IF EXISTS clause for ALTER/DROP statement. ...
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; ...
Syntax Drop_Table_Statement := 'DROP' 'TABLE' ['IF' 'EXISTS']Identifier. Remarks Identifier Identifies the table to be dropped. If the Identifier is a three-part identifier, the table will be dropped from the specified database and schema. If the Identifier is a two-part identifier, then...