SQL-134:- How to ORDER BY the Order of Values in a SQL IN() Clause (#117)

* SQL-134:- How to ORDER BY the Order of Values in a SQL IN() Clause

* Create select-case-orderby.sql

* Create select-cte-orderby.sql

* Create select-field-orderby.sql

* Create select-temp-orderby.sql

* Deleted orderby-in-clause from sql-queries-3 directory

---------

Co-authored-by: root <kapilbk@[email protected]>

Author: kapilbk1996

sql-queries-4/orderby-in-clause/select-case-orderby.sql

@@ -0,0 +1,10 @@
+SELECT id, name
+FROM Student
+WHERE id IN (1110, 1101, 1617, 1107)
+ORDER BY CASE
+    WHEN id = 1110 THEN 1
+    WHEN id = 1101 THEN 2
+    WHEN id = 1617 THEN 3
+    WHEN id = 1107 THEN 4
+    ELSE 5
+END;

sql-queries-4/orderby-in-clause/select-cte-orderby.sql

@@ -0,0 +1,13 @@
+WITH OrderList AS (
+    SELECT 1110 AS id, 1 AS ord
+    UNION ALL
+    SELECT 1101 AS id, 2 AS ord
+    UNION ALL
+    SELECT 1617 AS id, 3 AS ord
+    UNION ALL
+    SELECT 1107 AS id, 4 AS ord
+)
+SELECT s.id, s.name
+FROM Student s
+JOIN OrderList ol ON s.id = ol.id
+ORDER BY ol.ord;

sql-queries-4/orderby-in-clause/select-field-orderby.sql

@@ -0,0 +1,4 @@
+SELECT id, name
+FROM Student
+WHERE id IN (1110, 1101, 1617, 1107)
+ORDER BY FIELD(id, 1110, 1101, 1617, 1107);

sql-queries-4/orderby-in-clause/select-temp-orderby.sql

@@ -0,0 +1,9 @@
+CREATE TEMPORARY TABLE temp_order (id INT, ord INT);
+INSERT INTO temp_order (id, ord) VALUES (1110, 1), (1101, 2), (1617, 3), (1107, 4);
+
+SELECT s.id, s.name 
+FROM Student s
+JOIN temp_order t ON s.id = t.id
+ORDER BY t.ord;
+
+DROP TEMPORARY TABLE temp_order;