In MariaDB, JSON_ARRAY_APPEND() is a built-in function that appends values to the end of the specified array/s within a JSON document, and returns the result.
Tag: what is
MariaDB JSON_OBJECT() Explained
In MariaDB, JSON_OBJECT() is a built-in function that returns a JSON object containing the key/value pairs provided as arguments.
MariaDB JSON_ARRAYAGG() Explained
In MariaDB, JSON_ARRAYAGG() is a built-in function that returns a JSON array containing an element for each value in a given set of JSON or SQL values.
The function acts on a column or an expression that evaluates to a single value. It enables you to aggregate a result set as a single JSON array. Each row of the result set ends up as a single element in the array.
Continue readingMariaDB JSON_ARRAY() Explained
In MariaDB, JSON_ARRAY() is a built-in function that returns a JSON array containing the specified values, provided as arguments.
MariaDB CURRENT_ROLE() Explained
In MariaDB, CURRENT_ROLE() is a built-in function that returns the current role name. The current role determines your access privileges.
The output of SELECT CURRENT_ROLE is equivalent to the contents of the information_schema.ENABLED_ROLES table.
MariaDB ROW_COUNT() Explained
In MariaDB, ROW_COUNT() is a built-in function that returns the number of rows updated, inserted or deleted by the preceding statement.
The value returned by ROW_COUNT() is the same as the row count that the mysql client displays and the value from the mysql_affected_rows() C API function.
MariaDB LAST_INSERT_ID() Explained
In MariaDB, LAST_INSERT_ID() is a built-in function that returns the first automatically generated value successfully inserted for an AUTO_INCREMENT column as a result of the most recently executed INSERT statement.
It can also be called with an argument, in which case, it returns the value of the expression and the next call to LAST_INSERT_ID() will return the same value.
MariaDB JSON_TABLE() Explained
In MariaDB, JSON_TABLE() is a built-in function that converts JSON data into a relational form.
In other words, it lets you return a JSON document as a table.
The JSON_TABLE() function was introduced in MariaDB 10.6.0.
MariaDB LTRIM() vs LTRIM_ORACLE(): What’s the Difference?
MariaDB has an LTRIM() function and a LTRIM_ORACLE() function. Both functions do essentially the same thing. But there is a minor difference.
MariaDB DEFAULT() Explained
In MariaDB, DEFAULT() is a built-in function that returns the default value for a table column.
If the column has no default value and it is nullable, then NULL is returned. If the column has no default value and it is not nullable, an error is returned.