Przykład SQL CTE
WITH expression_name[(column_name [,...])]
AS
(CTE_definition)
SQL_statement;
Code language: SQL (Structured Query Language) (sql)
simon caf
WITH expression_name[(column_name [,...])]
AS
(CTE_definition)
SQL_statement;
Code language: SQL (Structured Query Language) (sql)/*
CTE: Common Table Expressions
It is a temporary named result set that you can reference within
a SELECT, INSERT, UPDATE, or DELETE statement.
*/
WITH
odd_num_cte (id, n) AS
(
SELECT 1, 1
UNION ALL
SELECT id+1, n+2 from odd_num_cte where id < 5
)
SELECT * FROM odd_num_cte;