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 Query to change lower case to upper case?
You can use in-built function UPPER() from MySQL to change a lower case to upper case. The syntax is as follows with select statement.
SELECT UPPER(‘yourStringValue’);
The following is an example showing string in lower case −
mysql> select upper('john');Here is the output displaying string in upper case −
+---------------+
| upper('john') |
+---------------+
| JOHN |
+---------------+
1 row in set (0.00 sec)If you already have a table with a lower case value, then you can use the UPPER() function with update command. The syntax is as follows −
UPDATE yourTableName set yourColumnName = UPPER(yourColumnName);
To understand the above concept, let us first create a table and insert string values in lowercase. The following is the query to create a table −
mysql> create table UpperTableDemo −> ( −> BookName longtext −> ); Query OK, 0 rows affected (0.70 sec)
Insert some records in the table using INSERT command. The query is as follows −
mysql> insert into UpperTableDemo values('introduction to c');
Query OK, 1 row affected (0.13 sec)
mysql> insert into UpperTableDemo values('introduction to java');
Query OK, 1 row affected (0.18 sec)
mysql> insert into UpperTableDemo values('introduction to python');
Query OK, 1 row affected (0.11 sec)
mysql> insert into UpperTableDemo values('introduction to c#');
Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement. The query is as follows −
mysql> select *from UpperTableDemo;
The following is the output −
+------------------------+ | BookName | +------------------------+ | introduction to c | | introduction to java | | introduction to python | | introduction to c# | +------------------------+ 4 rows in set (0.00 sec)
The following is the query to change the lower case to upper case −
mysql> update UpperTableDemo set BookName = upper(BookName); Query OK, 4 rows affected (0.16 sec) Rows matched: 4 Changed: 4 Warnings: 0
Display all records again with updated value. The query is as follows −
mysql> select *from UpperTableDemo;
The following is the output −
+------------------------+ | BookName | +------------------------+ | INTRODUCTION TO C | | INTRODUCTION TO JAVA | | INTRODUCTION TO PYTHON | | INTRODUCTION TO C# | +------------------------+ 4 rows in set (0.00 sec)
7K+ Views
