ARRAY_POSITIONS function returns the positions of all occurrences of an array element. Here is the basic syntax of using the ARRAY_POSITIONS function.
SELECT ARRAY_POSITIONS(array[2,1,3,1,2],1);
Above sql returns 2,4 as the output as element ‘1’ occurred in both 2nd and 4th position.
The array_fill function in PostgreSQL is used to create an array of a specified dimension and fill it with a specified value. This function is useful when you want to generate arrays with a specific structure and initialize all elements to a common value. Below is the syntax for the array_fill function: array_fill(value, dimensions) value…
The array_remove function in PostgreSQL is used to remove all occurrences of a specified value from an array. It takes two arguments: the array from which you want to remove elements and the value you want to remove. Below is the syntax of the array_remove function: array_remove(array, value_to_remove) Where: array is the array from which…
The array_replace function in PostgreSQL is used to replace all occurrences of a specified value from an array. It takes three arguments: the array from which you want to replace elements, the value that you want to replace and the value you want to replace with. Below is the syntax of the array_replace function: array_replace(array,…
ARRAY_POSITION function in PostgreSQL is used to return the position of the first occurrence of an array element. Here is the basic syntax of using array_position function. SELECT array_position(your_array_column, int)) AS position FROM your_table ; Example of using array_position function: SELECT array_position(array(20, 10, 10, 30), 10) AS position; The output would be 2 ; as…
The array_length function is used to determine the length (number of elements) of a one-dimensional array in PostgreSQL. This function takes two arguments – the array and the dimension for which you want to find the length. Here’s the syntax of the array_length function: array_length(array_expression, dimension) Where: array_expression is the array for which you want…
The array_append function in PostgreSQL is used to append an element to the end of an array. It takes two arguments: the array to which you want to append an element, and the element you want to append. Below is the syntax of the array_append function: array_append(array, element_to_append) Where: array is the array to which…