In PostgreSQL, the current_date function returns the current date.
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How date_trunc() Works in PostgreSQL
In PostgreSQL, the date_trunc() function truncates a date/time value to a specified precision.
It can also truncate the value to a specified precision in a specified time zone.
You could think of it as a date version of the trunc() function (which truncates numbers).
How the to_number() Function Works in PostgreSQL
In PostgreSQL, you can use the to_number() function to convert a string to a numeric value.
More specifically, it converts the string representation of a number to a numeric value.
For example, if you have $1,234.50 as a string, you can use to_number() to convert that to an actual number that uses the numeric data type.
How Atanh() Works in PostgreSQL
In PostgreSQL, atanh() is a hyperbolic function that returns the inverse hyperbolic tangent of its argument.
The argument and return value are provided as a double precision value.
How Acosh() Works in PostgreSQL
In PostgreSQL, acosh() is a hyperbolic function that returns the inverse hyperbolic cosine of its argument.
The argument and return value are provided as a double precision value.
How Asinh() Works in PostgreSQL
In PostgreSQL, asinh() is a hyperbolic function that returns the inverse hyperbolic sine of its argument.
The argument and return value are provided as a double precision value.
How Cosh() Works in PostgreSQL
In PostgreSQL, cosh() is a hyperbolic function that returns the hyperbolic cosine of its argument.
The argument and return value are provided as a double precision value.
How Tanh() Works in PostgreSQL
In PostgreSQL, tanh() is a hyperbolic function that returns the hyperbolic tangent of its argument.
The argument and return value are provided as a double precision value.
How Sinh() Works in PostgreSQL
In PostgreSQL, sinh() is a hyperbolic function that returns the hyperbolic sine of its argument.
The argument and return value are provided as a double precision value.
How Mod() Works in PostgreSQL
In PostgreSQL, mod() is a mathematical function that returns the remainder from division of the first argument (the dividend) by the second argument (the divisor).