In MariaDB, WEIGHT_STRING() is a built-in function that returns the weight string for the input string. The return value is a binary string that represents the comparison and sorting value of the string.
DBMS
Database Management Systems
How UNCOMPRESSED_LENGTH() Works in MariaDB
In MariaDB, UNCOMPRESSED_LENGTH() is a built-in function that returns the length of a compressed string before it was compressed with the COMPRESS() function.
How COMPRESS() Works in MariaDB
In MariaDB, COMPRESS() is a built-in function that compresses a string and returns the result as a binary string.
The COMPRESS() function requires MariaDB to have been compiled with a compression library such as zlib. If MariaDB hasn’t been compiled with such a compression library, COMPRESS() returns null.
How UNCOMPRESS() Works in MariaDB
In MariaDB, UNCOMPRESS() is a built-in function that uncompresses a string that’s been compressed by the COMPRESS() function.
How STRCMP() Works in MariaDB
In MariaDB, STRCMP() is a built-in string function that compares two strings. It returns 0, -1, or 1, depending on whether the strings are the same or not.
How SPACE() Works in MariaDB
In MariaDB, SPACE() is a built-in string function that returns a given number of space characters.
You provide the number of spaces to return when you call the function.
How SOUNDS LIKE Works in MariaDB
In MariaDB, you can use SOUNDS LIKE in a query to match words that sound alike.
How SOUNDEX() Works in MariaDB
In MariaDB, SOUNDEX() is a built-in string function that returns the Soundex string from a given string.
Soundex is a phonetic algorithm for indexing names by sound, as pronounced in English. If two words sound the same, they should have the same Soundex string. If two words sound similar, but not exactly the same, their Soundex string might look similar but not exactly the same.
The function accepts one argument: the string for which to return the Soundex string from.
How REVERSE() Works in MariaDB
In MariaDB, REVERSE() is a built-in string function that returns a string with the characters in reverse order.
The function accepts one argument: the string to reverse.
How REPLACE() Works in MariaDB
In MariaDB, REPLACE() is a built-in string function that allows you to replace a part of a string with another string.
The function accepts three arguments: the string, the substring to replace, and the string to replace the substring with.