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 -- Syn
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 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...
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...
Next, you need to build a dynamicDROP TABLEstatement: -- build dynamic sql (DROP TABLE tbl1, tbl2...;) SELECT CONCAT('DROP TABLE ',GROUP_CONCAT(CONCAT(@schema,'.',table_name)),';') INTO @droplike FROM information_schema.tables WHERE @schema = database() AND table_name LIKE @patt...
Syntax error in DROP TABLE or DROP INDEX. (Error 3295)Article 06/14/2014 Expand table You entered an SQL statement that has an invalid DROP statement. Possible causes: A reserved word or argument name is misspelled or missing. Punctuation is incorrect....
A blockchain or immutable table can be dropped only after it has not been modified for a period of time that is defined by its retention period. An empty blockchain or immutable table can be dropped regardless of its retention period. Syntax drop_table::= Description of the illustration ...
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...
DDL Syntax Overview ALTER DATABASE ALTER FOREIGN TABLE (GDS Import and Export) ALTER FOREIGN TABLE (for HDFS or OBS) ALTER FOREIGN TABLE (SQL on other GaussDB(DWS)) ALTER FUNCTION ALTER GROUP ALTER INDEX ALTER LARGE OBJECT ALTER REDACTION POLICY ALTER RESOURCE POOL ALTER ROLE ...
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; ...