Updated SQL Puzzle | The INNER JOIN – Two Rows PUZZLE | Solution without UNION/UNION All

20 Friday Jul 2018

Posted by Pawan Kumar Khowal in Download SQL Interview Q's, SQL Concepts, SQL Puzzles, SQL SERVER, SQL Server Interview Questions, SQL SERVER Puzzles, T SQL Puzzles, Tricky SQL Queries

≈ 2 Comments

Updated SQL Puzzle | The INNER JOIN – Two Rows PUZZLE | Solution without UNION/UNION All

This is something really interesting. Here you have to join these two tables and provide the resulted data but the matching rows into Multiple Rows. The Challenge here is to do this without using UNION/UNION ALL. Please check out the sample input and the expected output.

Sample Input

Table 1 –

Id	Vals
1	Pawan
2	Sharlee
3	Harry

Table 2 –

Id	Vals
1	Kumar
2	Diwan

Expected Output

Id	Vals
1	Pawan
1	Kumar
2	Sharlee
2	Diwan

Script – DDL and INSERT Sample Data

--

CREATE TABLE T1N1
(
	 Id INT
	,Vals Varchar(10)
)
GO

INSERT INTO T1N1 VALUES
(1,'Pawan'),
(2,'Sharlee'),
(3,'Harry')
GO

CREATE TABLE T1N2
(
	 Id INT
	,Vals Varchar(10)
)
GO

INSERT INTO T1N2 VALUES
(1,'Kumar'),
(2,'Diwan')
GO

SELECT * FROM T1N1
GO
SELECT * FROM T1N2
GO


--

SOLUTION 1

--

SELECT Id,Vals FROM 
(
	SELECT ISNULL(a.Id,B.Id) Id, ISNULL(a.Vals,B.Vals) Vals , COUNT(*) OVER (PARTITION BY ISNULL(a.Id,B.Id)) cnt
	FROM T1N1 a
	FULL OUTER JOIN T1N2 b ON a.Id = B.Id and a.Vals = b.Vals
)z WHERE cnt > 1

--

OUTPUT – 1

--

Id          Vals
----------- ----------
1           Pawan
1           Kumar
2           Diwan
2           Sharlee

(4 row(s) affected)

--

Enjoy 🙂

Please add comment(s) if you have one or multiple solutions in mind. Thank You.

Pawan Khowal

Pawan is a SQL Server Developer. If you need any help in writing code/puzzle or training please email at – pawankkmr”AT”gmail.com. Meanwhile please go throgh the top pages from his blog.

Page Detail	URL
☛ SQL Advance Puzzles	https://msbiskills.com/tsql-puzzles-asked-in-interview-over-the-years/
☛ SQL Tricky Queries	https://msbiskills.com/sql-puzzles-finding-outputs/
☛ SQL Server Performance tuning Articles	https://msbiskills.com/sql-performance-tuning/
☛ SQL Server Articles	https://msbiskills.com/t-sql/
☛ SQL Interview Questions & Answers	https://msbiskills.com/sql-server-interview-questions/

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1. If you like this post, you may want to join my SQL SERVER Interview Puzzles/Interview Questions on Facebook: https://www.facebook.com/groups/1430882120556342/

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SQL Puzzle | The NOT in Range Puzzle – SINGLE SELECT | SQL Interview Question

20 Friday Jul 2018

Posted by Pawan Kumar Khowal in Download SQL Interview Q's, SQL Concepts, SQL Puzzles, SQL SERVER, SQL Server Interview Questions, SQL SERVER Puzzles, T SQL Puzzles, Tricky SQL Queries

≈ 1 Comment

Tags

SQL Puzzle | The NOT in Range Puzzle – SINGLE SELECT | SQL Interview Question

In this puzzle you have to JOIN the two tables based on Gr column and figure out whether the val colum’s value is present between the startlimit and the endlimit columns. If not then we need that rows in the Output. Please check out the sample input and the expected output.

Sample Input

Table 1 –

Id	Gr	Val
1	a	10
2	b	15
3	c	45

Table 2 –

Gr	StartLimit	EndLimit
a	0	9
a	20	100
b	10	14
b	20	100
c	10	50

Expected Output

Id	Gr	Val
1	a	10
1	a	10
2	b	15
2	b	15

Script – DDL and INSERT Sample Data

--

CREATE TABLE Prima
(
	 Id INT
	,Gr VARCHAR(10)
	,Val INT
)
GO

INSERT INTO Prima VALUES 
(1,'a',10),
(2,'b',15),
(3,'c',45)

CREATE TABLE Limits
(
	 Gr VARCHAR(10)
	,StartLimit INT
	,EndLimit INT
)
GO

INSERT INTO Limits VALUES 
('a',0,9),
('a',20,100),
('b',10,14),
('b',20,100),
('c',10,50)
GO

--

SOLUTION 1

--

SELECT P.* FROM Prima P
JOIN Limits L ON NOT ( P.Val BETWEEN L.StartLimit AND L.EndLimit )
AND P.Gr = L.Gr

--

OUTPUT – 1

--

Id          Gr         Val
----------- ---------- -----------
1           a          10
1           a          10
2           b          15
2           b          15

(4 rows affected)

--

SOLUTION 2

--

SELECT P.* FROM Prima P
JOIN Limits L ON P.Val NOT BETWEEN L.StartLimit AND L.EndLimit
AND P.Gr = L.Gr


--

OUTPUT – 2

--

Id          Gr         Val
----------- ---------- -----------
1           a          10
1           a          10
2           b          15
2           b          15

(4 rows affected)


--

SOLUTION 3

--

SELECT * 
FROM Prima v
WHERE NOT EXISTS (SELECT NULL FROM Limits r
                  WHERE v.Gr = r.Gr AND
                  v.Val BETWEEN r.StartLimit AND r.EndLimit)

--

OUTPUT – 3

--

Id          Gr         Val
----------- ---------- -----------
1           a          10
1           a          10
2           b          15
2           b          15

(4 rows affected)


--

Enjoy 🙂

Please add comment(s) if you have one or multiple solutions in mind. Thank You.

Pawan Khowal

Pawan is a SQL Server Developer. If you need any help in writing code/puzzle or training please email at – pawankkmr”AT”gmail.com. Meanwhile please go throgh the top pages from his blog.

Page Detail	URL
☛ SQL Advance Puzzles	https://msbiskills.com/tsql-puzzles-asked-in-interview-over-the-years/
☛ SQL Tricky Queries	https://msbiskills.com/sql-puzzles-finding-outputs/
☛ SQL Server Performance tuning Articles	https://msbiskills.com/sql-performance-tuning/
☛ SQL Server Articles	https://msbiskills.com/t-sql/
☛ SQL Interview Questions & Answers	https://msbiskills.com/sql-server-interview-questions/

My SQL Groups on Facebook:

1. If you like this post, you may want to join my SQL SERVER Interview Puzzles/Interview Questions on Facebook: https://www.facebook.com/groups/1430882120556342/

2. If you like this post, you may want to join my SQL Server Puzzles on Facebook:
https://www.facebook.com/groups/206594023090781/

My SQL Page on Facebook:

2. For all the updates you may follow my page -> https://www.facebook.com/MSBISkillscom-1602779883299222/

Enjoy !!! Keep Learning

Http://MsbiSkills.com

SQL Puzzle | The INNER JOIN – Two Rows PUZZLE | SQL Interview Question

20 Friday Jul 2018

Posted by Pawan Kumar Khowal in Download SQL Interview Q's, SQL Concepts, SQL Puzzles, SQL SERVER, SQL Server Interview Questions

≈ 2 Comments

Tags

SQL Puzzle | The INNER JOIN – Two Rows PUZZLE | SQL Interview Question

This is something really interesting. Here you have to join these two tables and provide the resultated data but the matching rows into Multiple Rows. Please check out the sample input and the expected output.

Sample Input

Table 1 –

Id	Vals
1	Pawan
2	Sharlee
3	Harry

Table 2 –

Id	Vals
1	Kumar
2	Diwan

Expected Output

Id	Vals
1	Pawan
1	Kumar
2	Sharlee
2	Diwan

Script – DDL and INSERT Sample Data

--

CREATE TABLE T1N1
(
	 Id INT
	,Vals Varchar(10)
)
GO

INSERT INTO T1N1 VALUES
(1,'Pawan'),
(2,'Sharlee'),
(3,'Harry')
GO

CREATE TABLE T1N2
(
	 Id INT
	,Vals Varchar(10)
)
GO

INSERT INTO T1N2 VALUES
(1,'Kumar'),
(2,'Diwan')
GO

SELECT * FROM T1N1
GO
SELECT * FROM T1N2
GO


--

SOLUTION 1

--

SELECT Id,Vals
FROM 
(
	SELECT a.* , 1 Ord
	FROM T1N1 a INNER JOIN T1N2 b ON a.Id = b.Id
	UNION ALL
	SELECT b.* , 2 Ord
	FROM T1N1 a INNER JOIN T1N2 b ON a.Id = b.Id
)x
ORDER BY Id, Ord
GO

--

OUTPUT – 1

--

Id          Vals
----------- ----------
1           Pawan
1           Kumar
2           Sharlee
2           Diwan

(4 rows affected)

--

SOLUTION 2

--

SELECT Id,Vals
FROM 
(
	SELECT a.* , 1 Ord
	FROM T1N1 a CROSS APPLY ( SELECT NULL v FROM T1N2 b WHERE a.Id = b.Id )x
	UNION ALL
	SELECT x.* , 2 Ord
	FROM T1N1 a CROSS APPLY ( SELECT * FROM T1N2 b WHERE a.Id = b.Id )x
)x
ORDER BY Id, Ord
GO

--

OUTPUT – 2

--

Id          Vals
----------- ----------
1           Pawan
1           Kumar
2           Sharlee
2           Diwan

(4 rows affected)


--

Enjoy 🙂

Please add comment(s) if you have one or multiple solutions in mind. Thank You.

Pawan Khowal

Pawan is a SQL Server Developer. If you need any help in writing code/puzzle or training please email at – pawankkmr”AT”gmail.com. Meanwhile please go throgh the top pages from his blog.

Page Detail	URL
☛ SQL Advance Puzzles	https://msbiskills.com/tsql-puzzles-asked-in-interview-over-the-years/
☛ SQL Tricky Queries	https://msbiskills.com/sql-puzzles-finding-outputs/
☛ SQL Server Performance tuning Articles	https://msbiskills.com/sql-performance-tuning/
☛ SQL Server Articles	https://msbiskills.com/t-sql/
☛ SQL Interview Questions & Answers	https://msbiskills.com/sql-server-interview-questions/

My SQL Groups on Facebook:

1. If you like this post, you may want to join my SQL SERVER Interview Puzzles/Interview Questions on Facebook: https://www.facebook.com/groups/1430882120556342/

2. If you like this post, you may want to join my SQL Server Puzzles on Facebook:
https://www.facebook.com/groups/206594023090781/

My SQL Page on Facebook:

2. For all the updates you may follow my page -> https://www.facebook.com/MSBISkillscom-1602779883299222/

Enjoy !!! Keep Learning

Http://MsbiSkills.com

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Daily Archives: July 20, 2018

Updated SQL Puzzle | The INNER JOIN – Two Rows PUZZLE | Solution without UNION/UNION All

SQL Puzzle | The NOT in Range Puzzle – SINGLE SELECT | SQL Interview Question

SQL Puzzle | The INNER JOIN – Two Rows PUZZLE | SQL Interview Question

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