Run Code
|
API
|
Code Wall
|
Users
|
Misc
|
Feedback
|
Login
|
Theme
|
Privacy
|
Patreon
CTE reqursive query
Language:
Ada
Assembly
Bash
C#
C++ (gcc)
C++ (clang)
C++ (vc++)
C (gcc)
C (clang)
C (vc)
Client Side
Clojure
Common Lisp
D
Elixir
Erlang
F#
Fortran
Go
Haskell
Java
Javascript
Kotlin
Lua
MySql
Node.js
Ocaml
Octave
Objective-C
Oracle
Pascal
Perl
Php
PostgreSQL
Prolog
Python
Python 3
R
Rust
Ruby
Scala
Scheme
Sql Server
Swift
Tcl
Visual Basic
Layout:
Vertical
Horizontal
--Sql Server 2014 Express Edition --Batches are separated by 'go' --select @@version as 'sql server version' create table Employee(EmployeeID int ,Name nvarchar(20) , ManagerID int null) ------------------------- insert into Employee (EmployeeID,Name,ManagerID) values (1,'Heba',null) insert into Employee (EmployeeID,Name,ManagerID) values (2,'Ahmed',1) insert into Employee (EmployeeID,Name,ManagerID) values (3,'Zain',2) insert into Employee (EmployeeID,Name,ManagerID) values (4,'Yassin',1) insert into Employee (EmployeeID,Name,ManagerID) values (5,'Test',4) ------------------------ select * from Employee ------------------------ --Declare @ManagerID int-- Declare @ID int =5; --select ManagerID into @ManagerID from Employee where EmployeeID=5 --target employee that we want to get hiratchial to the manager --select * from Employee where EmployeeID =@ManagerID WITH EmployeeCTE AS ( -- Anchor member --initial_query select EmployeeID,Name,ManagerID from Employee where EmployeeID=@ID --target employee that we want to get hiratchial to the manager UNION ALL -- Recursive member that references expression_name. --recursive_query select Employee.EmployeeID,Employee.Name,Employee.ManagerID from Employee join EmployeeCTE on Employee.EmployeeID =EmployeeCTE.ManagerID ) -- references expression name SELECT * FROM EmployeeCTE
View schema
Execution time: 0,02 sec, rows selected: 9, rows affected: 5, absolute service time: 0,2 sec, absolute service time: 0,2 sec
edit mode
|
history
|
discussion