In MariaDB, DIV
performs integer division.
It discards from the division result any fractional part to the right of the decimal point.
Continue readingIn MariaDB, DIV
performs integer division.
It discards from the division result any fractional part to the right of the decimal point.
Continue readingIn MariaDB, the modulo operator (%
) returns the modulo operation. It returns the remainder of its first argument divided by its second argument.
If you have documents that store dates as Date objects, but you want to return them in a different format, you can use the $dateToString
aggregate pipeline operator.
For example, you might want a date to be returned in mm/dd/yyyy
format instead of the long ISODate()
format that includes minutes, seconds, milliseconds, etc
The $dateToString
operator converts the Date object to a string, and optionally allows you to specify a format for the resulting output.
In MariaDB, the LIKE
operator allows you to do pattern matching. It determines whether a specific character string matches a specified pattern. It returns either 1
(TRUE) or 0
(FALSE).
In MariaDB, the NOT LIKE
operator is used to test whether or not a string does not match a pattern. It returns the inverse of the LIKE
operator. It’s the same as applying the NOT
operator against the whole LIKE
expression.
In MariaDB, the BINARY
operator casts the string following it to a binary string.
The BINARY
operator enables you to do a column comparison byte by byte rather than character by character. This causes the comparison to be case sensitive even if the column isn’t defined as BINARY
or BLOB
. It also means that leading/trailing spaces become significant.
In MongoDB, the $sort
aggregation pipeline stage sorts all input documents and returns them to the pipeline in sorted order.
In MongoDB, the $switch
aggregation pipeline operator evaluates a series of case
expressions, and executes a specified expression only when a case
expression evaluates to true
.
In MongoDB, the $mergeObjects
aggregation pipeline operator combines multiple documents into a single document.
In MongoDB you can use the $isArray
aggregation pipeline operator to check whether or not a value is an array.
It accepts any valid expression, and returns true
if the expression is an array, false
if it’s not.