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MySQL String Function
MySQL string functions manipulate the character string data effectively. The following table indicates each of the functions with a brief description:
| Functions | Description |
|---|---|
| CONCAT_WS() | MySQL CONCAT_WS() function returns a string by concatenating arguments using separator. |
| CONCAT() | The CONCAT() function returns a string by concatenating all the arguments. |
| CHARACTER_LENGTH() | The CHARACTER_LENGTH() function returns the size of the specified string. |
| ELT() | The ELT() function returns the Nth element from the list of string. |
| EXPORT_SET() | The EXPORT_SET() function the returns string for each bit set. |
| FIELD() | The FIELD() function returns the index of string. |
| FIND_IN_SET() | The FIND_IN_SET() function returns the value of the string which is given in the first position in the argument. |
| FORMAT() | The FORMAT() function formats the number X to round of D decimal place. |
| FROM_BASE64() | The FROM_BASE64() function encodes the given string to binary format. |
| HEX() | The HEX() function returns the specified number or string in a hexadecimal string. |
| INSERT() | In INSERT() function, a string str is passed with a position ‘pos’ which tells at which position the character is to be placed, and ‘len’ length is the length of the character to be placed. |
| INSTR() | The INSTR() function returns the 1st occurrence of substring substr in string str. |
| LCASE() | The LCASE() function returns 1st occurrence of substring substr in string str. |
| LEFT() | The LEFT() function returns left side ‘len’ characters from the given string ‘str’. |
| LENGTH() | The LENGTH() function returns the length of the specified string which is measured in bytes. |
| LIKE() | The LIKE() function returns either 1 or 0 and is used for checking pattern matching. |
| LOAD_FILE() | The LOAD_FILE() function returns the content of the file. |
| LOCATE() | The LOCATE() function returns the first occurrence of given ‘substr’ in the given string. |
| LOWER() | The LOWER() function returns the given string in lower case. |
| LPAD() | The LPAD() function returns string ‘str’ which is left-padded to the given length. |
| LTRIM() | The LTRIM() function returns string by removing leading space. |
| MAKE_SET() | The MAKE_SET() function returns values from the set for the given bit. |
| MID() | The MID() function extracts a substring from a string and returns a string with given length and position. |
| OCTET_LENGTH() | The OCTET_LENGTH() function returns length of given string. |
| OCT() | The OCT() function returns length of given string. |
| ORD() | The ORD() function returns the code for the leftmost character if that character is a multi-byte. |
| POSITION() | The POSITION() function returns the position of the given substring in a string. |
| QUOTE() | The QUOTE() function returns the string which is passed in a single quote. |
| REPEAT() | The REPEAT() function repeats a string for a specified number of times. |
| REPLACE() | The REPLACE() function replaces all the occurrences of a substring within a string. |
| REVERSE() | The REVERSE() function reverses a string supplied as an argument. |
| RIGHT() | The RIGHT() function extracts a specified number of characters from the right side of a string. |
| RPAD() | The MYSQL RPAD() function pads the specified strings from the right. |
| RTRIM() | The MYSQL RTRIM() function removes the trailing spaces from the specified string. |
| SOUNDEX() | The MYSQL SOUNDEX() function returns the soundex string for the specified string. |
Example 1
Output:
mysql> SELECT SOUNDEX('tutoraspire'); +-----------------------+ | SOUNDEX('tutoraspire') | +-----------------------+ | W6262 | +-----------------------+ 1 row in set (0.00 sec) Example 2
Output:
mysql> SELECT ORD('mysql'); +-------------------+ | ORD('mysql') | +-------------------+ | 109 | +-------------------+ 1 row in set (0.00 sec) Example 3
Output:
mysql> SELECT REPEAT('*+*',15); +-----------------------------------------------+ | REPEAT('*+*',15) | +-----------------------------------------------+ | *+**+**+**+**+**+**+**+**+**+**+**+**+**+**+* | +-----------------------------------------------+ 1 row in set (0.03 sec) Next TopicMySQL String