# INDEX() function

Functions Jun 04, 2019

The INDEX() function is a lookup and reference function that returns the value of returned reference basis the supplied row and column of given array. It keeps 3 parameters and they are array, row_num, column_num.

Where to apply :

This function helps in getting value from a table or database based on supplied row and column.

Syntax :

=INDEX(array, row_num, [column_num])

Parameters :

array - A cell or a range reference.

row_num - A number that is used for row number of supplied array.

column_num - [Optional], a number that is used for column number of supplied array.

Remember - row_num and column_num should not be negative number.

Example :

1. To retrieve piece of information from an array.
``````
=INDEX({"Code", "Name", "Salary"; 1, "Raj", 5000; 2, "Sam", 10000}, 3, 3)   // Returns (10000)

``````

It returns (10000) from below array.

Excel based example:

We have Student Table

We have our another table that needs name based on Roll_no.

Fomula to retrieve name from Table 1 based on given Roll_No.

The INDEX() function is well explained in above image.

Thank You!

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