String comparisons in MySQL are not case sensitive by default: : String Compare « String « SQL / MySQL

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SQL / MySQL » String » String Compare 
String comparisons in MySQL are not case sensitive by default:
      
mysql>
mysql> CREATE TABLE mytable
    -> (
    ->  name    VARCHAR(20)
    -> );
Query OK, rows affected (0.01 sec)

mysql> INSERT INTO mytable (name)
    ->  VALUES
    ->          ('copper'),
    ->          ('gold'),
    ->          ('iron'),
    ->          ('lead'),
    ->          ('mercury'),
    ->          ('platinum'),
    ->          ('silver'),
    ->          ('tin')
    -> ;
Query OK, rows affected (0.00 sec)
Records: 8  Duplicates: 0  Warnings: 0

mysql>
mysql> SELECT FROM mytable;
+----------+
| name     |
+----------+
| copper   |
| gold     |
| iron     |
| lead     |
| mercury  |
| platinum |
| silver   |
| tin      |
+----------+
rows in set (0.00 sec)

mysql>
mysql> SELECT name, name = 'lead', name = 'LEAD' FROM mytable;
+----------+---------------+---------------+
| name     | name = 'lead' | name = 'LEAD' |
+----------+---------------+---------------+
| copper   |             |             |
| gold     |             |             |
| iron     |             |             |
| lead     |             |             |
| mercury  |             |             |
| platinum |             |             |
| silver   |             |             |
| tin      |             |             |
+----------+---------------+---------------+
rows in set (0.00 sec)

mysql>
mysql> drop table mytable;
Query OK, rows affected (0.00 sec)

   
    
    
    
    
    
  
Related examples in the same category
1.Compare String in where clause
2.String comparisons are performed from left to right, one character at a time:
3.The two strings '4200' and '4200.0' are not the same:
4.Case-insensitive nature of string comparisons:
5.To make a string comparison case sensitive, cast (convert) one of the strings to binary form by using the BINA
6.To make a string comparison not case sensitive, convert both strings to the same lettercase using UPPER( ) or
7.NULL values fail comparisons both with < and with >=
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