-- Syntax for Azure Synapse Analytics and Parallel Data WarehouseDROPUSERuser_name 参数 IF EXISTS 适用范围:SQL Server(SQL Server 2016 (13.x) 到当前版本、SQL 数据库)。 有条件地删除用户(仅当其已存在时)。 user_name 指定在此数据库中用于识别该用户的名称。
-- 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 syntax for DROP INDEX is displayed in Figure 4-35. Figure 4-35 The DROP INDEX Command BNF Notation DROP INDEX [schema .] index ; Prerequisite To drop an index, you must be logged into the database as SYSTEM or as a user with DBA/DDL privileges. Purpose Removes an index from...
syntaxsql -- Syntax for Azure Synapse Analytics and Parallel Data WarehouseDROPTABLE{database_name.schema_name.table_name|schema_name.table_name|table_name} [;] 参数 database_name 要在其中创建表的数据库的名称。 Azure SQL 数据库支持由三部分组成的名称格式 database_name.[schema_name].object_nam...
Syntax SQLSyntax ❮ PreviousNext ❯ SQL Statements Most of the actions you need to perform on a database are done with SQL statements. SQL statements consist of keywords that are easy to understand. The following SQL statement returns all records from a table named "Customers":...
syntaxsql -- Syntax for SQL Server and Azure SQL DatabaseALTER{PROC|PROCEDURE} [schema_name.]procedure_name[ ; number ] [ { @parameter_name[type_schema_name. ]data_type} [VARYING] [ = default ] [OUT|OUTPUT] [READONLY] ] [ ,...n ] [WITH<procedure_option>[ ,...n ] ] [FORRE...
"About SQL Expressions"andSELECTfor syntax of valid expressions Examples Inserting Values Examples The following statement inserts a row into the sample tabledepartments: INSERT INTO departmentsVALUES (280, 'Recreation', 121, 1700); If the departments table had been created with a default value of ...
syntaxsql 复制 CREATE [ OR ALTER ] { PROC | PROCEDURE } [schema_name.] procedure_name [ ; number ] [ { @parameter_name [ type_schema_name. ] data_type } [ VARYING ] [ NULL ] [ = default ] [ OUT | OUTPUT | [READONLY] ] [ ,...n ] [ WITH <procedure_option> [ ,......
ERRCODE_SYNTAX_ERROR 报错:syntax error at or near "xxxxx" 问题原因:SQL语法错误。 解决方法:重新检查SQL语法并修正。 ERRCODE_UNDEFINED_FUNCTION 报错:DISTINCT is not implemented for window functions 问题原因:Hologres目前不支持在窗口函数中使用DISTINCT关键字。
syntaxsql 複製 CREATE TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } ( { <column_definition> | [ ] [ ,... n ] | [ ] [ ,... n ] } [ PERIOD FOR SYSTEM_TIME ( system_start_time_column_name , system_end_time_column_name ) ] ) ...