![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
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
AmitDiwan has Published 11365 Articles
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
120 Views
Find NULL values using the IS NULL and update the new values using MySQL UPDATE and SET −update yourTableName set yourColumnName=yourValue where yourColumnName IS NULL;Let us first create a table −mysql> create table DemoTable768 ( Clientid int NOT NULL AUTO_INCREMENT PRIMARY KEY, ClientName varchar(100), ClientAge int ); ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
2K+ Views
For this, you can use LPAD() and pad a value on the left.Let us first create a table −mysql> create table DemoTable767 (Value varchar(100)); Query OK, 0 rows affected (1.40 sec)Insert some records in the table using insert command −mysql> insert into DemoTable767 values('4'); Query OK, 1 row affected (0.15 ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
1K+ Views
For this, you need to perform concatenation using CONCAT().Let us first create a table −mysql> create table DemoTable766 (Name varchar(100)); Query OK, 0 rows affected (0.65 sec)Insert some records in the table using insert command −mysql> insert into DemoTable766 values('John'); Query OK, 1 row affected (0.12 sec) mysql> insert into ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
59 Views
For this, you need to cast the varchar value to INTEGER.Let us first create a table −mysql> create table DemoTable765 (ItemPrice varchar(200)); Query OK, 0 rows affected (0.52 sec)Insert some records in the table using insert command −mysql> insert into DemoTable765 values('567.00'); Query OK, 1 row affected (0.16 sec) mysql> ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
584 Views
For this, you can use GROUP_CONCAT().Let us first create a table −mysql> create table DemoTable764 ( ProductId int, ProductPrice int ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command −mysql> insert into DemoTable764 values(101, 10000); Query OK, 1 row affected (0.12 ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
585 Views
To get result from multiple select statements, use UNION ALL. Following is the syntax −select yourValue1 AS anyColumnName UNION ALL select yourValue2 AS yourColumnName . . . . NLet us implement the above syntax in order to return enumeration of numbers in different rows −mysql> select 100 AS Number ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
7K+ Views
To select last two rows, use ORDER BY DESC LIMIT 2.Let us first create a table −mysql> create table DemoTable763 ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(100) ); Query OK, 0 rows affected (0.57 sec)Insert some records in the table using insert command −mysql> insert ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
546 Views
For this, you can use LIKE operator with OR condition.Let us first create a table −mysql> create table DemoTable762 (Title text); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command −mysql> insert into DemoTable762 values('Introduction to Java'); Query OK, 1 row affected (0.19 sec) ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
353 Views
The strings (column values) begun with a character and rest of the string has numbers. We want the sum of these numbers −J230 A130s C13For this, use SUBSTRING() function along with SUM().Let us first create a table −mysql> create table DemoTable761 (Price varchar(100)); Query OK, 0 rows affected (0.62 sec)Insert ... Read More
![AmitDiwan](https://www.tutorialspoint.com/assets/profiles/123055/profile/60_187394-1565938756.jpg)
AmitDiwan
149 Views
Let us first create a table −mysql> create table DemoTable760 ( ClientId int, ClientId2 int ); Query OK, 0 rows affected (0.79 sec)Insert some records in the table using insert command −mysql> insert into DemoTable760 values(100, 200); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable760 ... Read More