PostgreSQL provides us with the following ways to concatenate strings and numbers:
CONCAT() function, which concatenates its arguments.||), which concatenates its operands.Examples of each below.
In PostgreSQL, RPAD() is a function that enables us to add padding to the right part of a string.
In PostgreSQL, LPAD()is a function that enables us to add padding to the left part of a string.
Most of the major RDBMSs provide several options for concatenating two or more strings.
CONCAT() function, which concatenates its arguments.CONCAT_WS() that allows you to specify a separator that separates the concatenated strings.Below are examples of each method.
In PostgreSQL, we can use the TO_CHAR() function to format numbers in a given format. This includes formatting numbers with commas in the relevant location.
PostgreSQL also has a money data type, which outputs the value using the current locale. This can include commas in the appropriate place, based on the locale being used.
Most of the major RDBMSs have functions that enable us to extract the day, month, and year from datetime values.
Some RDBMSs provide multiple ways to do this, and others are more limited. Below are examples of extracting the day, month, and year from date values in some of the most popular RDBMSs.
In PostgreSQL, the CONCAT_WS() function concatenates two or more strings, placing a separator between each one. The separator is specified by the first argument.
In PostgreSQL, the CONCAT() function concatenates the text representations of its arguments.