How QUOTE() Works in MariaDB

In MariaDB, QUOTE() is a built-in string function that allows you to escape a string so that it’s suitable for inclusion in an SQL statement.

The string is returned enclosed by single quotes, and a backslash is prepended to each instance of single quote ('), backslash (\), ASCII NUL, and Control-Z characters.

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MariaDB SUBSTR() Explained

In MariaDB, SUBSTR() is a synonym for SUBSTRING().

It’s a built-in string function that returns a substring from a given string.

It requires at least two arguments; the string, and the position for which to extract the substring from. It also accepts an optional third argument that allows you to specify how long the substring should be.

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How SUBSTRING() Works in MariaDB

In MariaDB, SUBSTRING() is a built-in string function that returns a substring from a given string.

SUBSTRING() requires at least two arguments; the string, and the position for which to extract the substring from. It also accepts an optional third argument that allows you to specify how long the substring should be.

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3 Ways to Drop an Index in MongoDB

MongoDB provides several ways to drop an index or indexes.

To drop a single index, you can use the dropIndex() method.

To drop multiple indexes, you can use either the dropIndexes() method or the dropIndexes administration command.

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How COERCIBILITY() Works in MariaDB

In MariaDB, COERCIBILITY() is a system function that returns the collation coercibility value of its string argument.

It defines how collations will be converted in the case of collation conflict. In such conflicts, an expression with a higher coercibility is converted to the collation of an expression with a lower coercibility.

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