Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
MySQL UNION SELECT and IN clause in a single query
Let us first create a table −
mysql> create table DemoTable1 -> ( -> StudentId int, -> StudentName varchar(20) -> ); Query OK, 0 rows affected (1.24 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1 values(210,'Adam'); Query OK, 1 row affected (0.11 sec)
Display all records from the table using select statement −
mysql> select * from DemoTable1;
This will produce the following output −
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 210 | Adam | +-----------+-------------+ 1 row in set (0.00 sec)
Here is the query to create second table −
mysql> create table DemoTable2 -> ( -> StudentId int, -> StudentName varchar(20) -> ); Query OK, 0 rows affected (0.69 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable2 values(100,'Chris'); Query OK, 1 row affected (0.30 sec)
Display all records from the table using select statement −
mysql> select * from DemoTable2;
This will produce the following output −
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 100 | Chris | +-----------+-------------+ 1 row in set (0.00 sec)
Here is the query for MySQL UNION SELECT and IN clause −
mysql> select StudentName from -> ( -> select StudentId,StudentName from DemoTable1 -> UNION -> select StudentId,StudentName from DemoTable2 -> ) tbl -> where StudentId IN(210,100);
This will produce the following output −
+-------------+ | StudentName | +-------------+ | Adam | | Chris | +-------------+ 2 rows in set (0.00 sec)
Updated on: 11-Nov-2019
149 Views
Advertisements