Using the SCOTT schema, for each employee we want to know how many other people are in their department. Notice that a comma is used to separate the CTE query definitions. This Oracle tutorial explains how to use the Oracle WHEN OTHERS clause with syntax and examples. This is derived from a simple query and defined within the execution scope of a single SELECT, INSERT, UPDATE, DELETE or MERGE statement. UNION ALL is the only set operator allowed between the last anchor member and first recursive member, and when combining multiple recursive members.The number of columns in the anchor and recursive members must be the same.The data type of a column in the recursive member must be the same as the data type of the corresponding column in the anchor member.The FROM clause of a recursive member must refer only one time to the CTE A hint applied to a recursive reference to a CTE inside a The following guidelines apply to using a recursive common table expression:All columns returned by the recursive CTE are nullable regardless of the nullability of the columns returned by the participating An incorrectly composed recursive CTE may cause an infinite loop. Multiple anchor members and recursive members can be defined; however, all anchor member query definitions must be put before the first recursive member definition.

Oracle / PLSQL: WHEN OTHERS Clause. This clause can also be used in a CREATE VIEW statement as part of its defining SELECT statement. The FORMAT function, used to display the monetary amounts in a currency format, is available in SQL Server 2012 and higher.The following example shows the hierarchical list of managers and the employees who report to them.

SELECT AVG(CASE WHEN e.salary > 2000 THEN e.salary ELSE 2000 END) "Average Salary" FROM employees e; Average Salary ----- 6461.68224 Scripting on this page enhances content navigation, but does not change the content in any way. The CTE is the Tables on remote servers may be referenced in the CTE. Duplicate names … Functions like The current implementation of CTEs in SQL Data Warehouse and Parallel Data Warehouse have the following features and limitations:Multiple CTE query definitions can be defined in a CTE.A common table expression that includes references to itself (a recursive common table expression) is not supported.When a CTE is used in a statement that is part of a batch, the statement before it must be followed by a semicolon.The following example shows the total number of sales orders per year for each sales representative at Adventure Works Cycles.The following example shows the average number of sales orders for all years for the sales representatives.The following example shows how to define more than one CTE in a single query.

Specifies a temporary named result set, known as a common table expression (CTE). All CTE query definitions are anchor members unless they reference the CTE itself.Anchor members must be combined by one of these set operators: UNION ALL, UNION, INTERSECT, or EXCEPT. To prevent an infinite loop, you can limit the number of recursion levels allowed for a particular statement by using the A view that contains a recursive common table expression cannot be used to update data.Cursors may be defined on queries using CTEs. SELECT WHEN expression THEN instruction WHEN expression THEN instruction WHEN expression THEN instruction ⋮ OTHERWISE instruction(s) END. The example begins by creating and populating the The following example shows managers and the employees reporting to them. The following example shows the corrected code.The following example shows the hierarchy of product assemblies and components that are required to build the bicycle for The following example uses multiple anchor and recursive members to return all the ancestors of a specified person. The CTEs cannot be nested (no recursion). The Oracle / PLSQL CASE statement has the functionality of an IF-THEN-ELSE statement.