-- 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 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...
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...
This chapter explains how to create a table and how to insert data into it. The conventions of creating a table in HIVE is quite similar to creating a table using SQL. Create Table Statement Create Table is a statement used to create a table in Hive. The syntax and example are as follo...
The following script shows how the SampleTable in the TestReferenceDB database’s default schema is deleted if it already exists before it is recreated:U-SQL نسخ DROP TABLE IF EXISTS TestReferenceDB..SampleTable; CREATE TABLE TestReferenceDB..SampleTable AS (id int); ...
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. ...
table_name 要卸除之數據表的名稱。 名稱不得包含時態規格。 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.>DROPTABLEemployeetable;-- Assumes a table named `employeetable` exists in the `userdb` schema>DROP...
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; ...
适用范围:SQL Server(SQL Server 2016 (13.x) 到当前版本、SQL 数据库)。 只有在视图已存在时才对其进行有条件地删除。 schema_name 视图所属架构的名称。 view_name 要删除的视图的名称。 注解 删除视图时,将从系统目录中删除视图的定义和有关视图的其他信息。 还将删除视图的所有权限。 使用DROP TABLE 删除...