-- 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...
The TRUNCATE TABLE statement is used to delete the data inside a table, but not the table itself.SyntaxTRUNCATE TABLE table_name; Exercise? What does the SQL DROP TABLE statement do? Deletes a table and all its data from the database Renames an existing table Copies a table and its ...
-- 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...
如果找不到數據表,Azure Databricks 就會引發 TABLE_OR_VIEW_NOT_FOUND 錯誤。範例SQL 複製 -- Assumes a table named `employeetable` exists. > DROP TABLE employeetable; -- Assumes a table named `employeetable` exists in the `userdb` schema > DROP TABLE userdb.employeetable; --...
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 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 ...
MySQL DROP TABLE语句删除表 Summary: in this tutorial, we will show you how to remove existing tables using theMySQL DROP TABLEstatement. MySQL DROP TABLE statement syntax In order to remove existing tables, you use the MySQLDROP TABLEstatement. The syntax of theDROP TABLEis as follows:...
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...
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. ...
Azure SQL Database에 대한 구문입니다.syntaxsql 복사 DROP INDEX { <drop_relational_or_xml_or_spatial_index> [ , ...n ] } <drop_relational_or_xml_or_spatial_index> ::= index_name ON <object> <object> ::= { database_name.schema_name.table_or_view_name | ...