This is referred to as a recursive common table expression. -- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse[WITH<common_table_expression>[ ,...n ] ]<common_table_expression>::=expression_name [ ( column_name [ ,...n ] ) ]AS( CTE_que...
A common-table-expression permits defining a result table with a table-identifier that can be specified as a table name in any FROM clause of the fullselect that follows. Multiple common table expressions can be specified following the single WITH keywor
syntaxsql 复制 [ WITH <common_table_expression> [ ,...n ] ] <common_table_expression>::= expression_name [ ( column_name [ ,...n ] ) ] AS ( CTE_query_definition ) 参数expression_name公用表表达式的有效标识符。 expression_name 须不同于在同一 WITH <common_table_expression> 子句中...
Is a valid identifier for the common table expression. expression_name must be different from the name of any other common table expression defined in the same WITH <common_table_expression> clause, but expression_name can be the same as the name of a base table or view. Any reference to ...
For additional syntax considerations specific to recursive CTEs, see Recursive Common Table Expressions. Recursive Common Table Expressions A recursive common table expression is one having a subquery that refers to its own name. For example: WITH RECURSIVE cte (n) AS ( SELECT 1 UNION ALL ...
Common Table Expression Syntax A Common Table Expression contains three core parts: The CTE name (this is what follows theWITHkeyword) The column list (optional) The query (appears within parentheses after theASkeyword) The query using the CTE must be the first query appearing after the CTE. ...
js正则表达式语法大全(JS regular expression syntax Daquan) 热度: CommonTableExpression(公用表表达式) 公用表表达式,简称CTE,中文可以叫做,通用表表达式 (2010-10-2121:41:13) 转载标签:杂谈分类:百万家SQL 概念:公用表表达式,简称CTE,中文可以叫做,通用表表达式。
A warning is issued if this syntax is not found. If the result of a recursive common table expression is used to derive the final result table, and if a column mask is used to mask the column values in the final result table, the column mask cannot be applied to a column that is ...
Here’s the basic syntax for creating a common table expression: WITH cte_name (column1, column2, ...) AS ( -- CTE query SELECT ... ) -- Main query using the CTE SELECT ... FROM cte_name; In this syntax: WITH clause: Introduce the common table expression (CTE). It is followed...
Common Table Expression (CTE) is a temporary named result set that simplifies SQL queries. MaxCompute supports the standard SQL CTE, enhancing the readability and execution efficiency of SQL statements. This topic describes the features, command syntax, and usage examples of CTE. ...