LIKE with % WildCard in SQl.txt

// LIKE with % WildCard in SQL
-> The Like operator is used to search for a specified pattern in a column.
syntax: SELECT * FROM table_name WHERE column_name LIKE 'pattern';

// Wild cards 
-> Wild cards are used to search for data within a table. These characters are used with thr LIKE operator.
% -> zero or more characters
_ -> One single character
[charlist] -> Sets and ranges of characters to match 
[^charlist] or [!charlist] -> Matches only a character NOT specified within the brackets

1. % -> zero or more characters
'hello%' - all starting with hello Ex: hello testing
ex:  SELECT * FROM student_reg WHERE name LIKE 'bi%';
+------+-------+---------+------+---------+
| s_id | name  | address | dob  | fees    |
+------+-------+---------+------+---------+
|  104 | BIMAl | KTM     | NULL | 1001.23 |
+------+-------+---------+------+---------+

'%testing' - All ending with testing Ex: hello testing
ex:SELECT * FROM student_reg WHERE name LIKE '%i';
+------+------+---------+------------+----------+
| s_id | name | address | dob        | fees     |
+------+------+---------+------------+----------+
|  103 | HARI | PKR     | 2001-01-12 | 10000.52 |
+------+------+---------+------------+----------+

'%in%' - all containing with in ex: hello testing
SELECT * FROM student_reg WHERE name LIKE '%ma%';
+------+-------+---------+------------+-----------+
| s_id | name  | address | dob        | fees      |
+------+-------+---------+------------+-----------+
|  104 | BIMAl | KTM     | NULL       |   1001.23 |
|  105 | KAMAL | PKR     | 1956-12-12 | 100000.12 |
+------+-------+---------+------------+-----------+

2. - one single character
'testing_ -> '-starting with show then any character Ex testing
Ex: SELECT * FROM student_reg WHERE s_id LIKE '10_';
+------+---------+---------+------------+-----------+
| s_id | name    | address | dob        | fees      |
+------+---------+---------+------------+-----------+
|  101 | RAM     | KTM     | 1998-12-15 |   1000.23 |
|  102 | SITA    | KTM     | 2001-10-11 | 200000.12 |
|  103 | HARI    | PKR     | 2001-01-12 |  10000.52 |
|  104 | BIMAl   | KTM     | NULL       |   1001.23 |
|  105 | KAMAL   | PKR     | 1956-12-12 | 100000.12 |
|  106 | SITA KC | PKR     | 1998-02-02 |  20000.12 |
+------+---------+---------+------------+-----------+
'_tin' -> ant charaxter the tin. Ex testing
ex:SELECT * FROM student_reg WHERE s_id LIKE '_04';
+------+-------+---------+------+---------+
| s_id | name  | address | dob  | fees    |
+------+-------+---------+------+---------+
|  104 | BIMAl | KTM     | NULL | 1001.23 |
+------+-------+---------+------+---------+
't_s_g -> t then any character then s then any character, then g ex: testing
ex: SELECT * FROM student_reg WHERE s_id LIKE '1_3';
+------+------+---------+------------+----------+
| s_id | name | address | dob        | fees     |
+------+------+---------+------------+----------+
|  103 | HARI | PKR     | 2001-01-12 | 10000.52 |
+------+------+---------+------------+----------+