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access functions

MS Access: Mid Function

This MSAccess tutorial explains how to use the Access Mid function with syntax and examples.

Description

The Microsoft Access Mid function extracts a substring from a string (starting at any position).

Syntax

The syntax for the Mid function in MS Access is:

Mid ( text, start_position, number_of_characters )

Parameters or Arguments

Text is the string that you wish to extract from.

Start_position indicates the position in the string that you will begin extracting from. The first position in the string is 1.

Number_of_characters indicates the number of characters that you wish to extract. If you omit this parameter, the Mid function will return all characters after the start_position.

Applies To

The Mid function can be used in the following versions of Microsoft Access:

  • Access 2013, Access 2010, Access 2007, Access 2003, Access XP, Access 2000

Example

Let's look at how to use the Mid function in MS Access:

Mid ("Tech on the Net", 1, 4)
Result: "Tech"

Mid ("Alphabet", 5, 2)
Result: "ab"

Mid ("Alphabet", 5)
Result: "abet"

Example in VBA Code

The Mid function can be used in VBA code in Microsoft Access.

For example:

Dim LResult As String

LResult = Mid ("Alphabet", 5, 2)

The variable LResult would now contain the value of "ab".

If you omitted the number_of_characters parameter in the above example:

Dim LResult As String

LResult = Mid ("Alphabet", 5)

The variable LResult would now contain the value of "abet", since omitting the final parameter will return all characters after the start_position.

Example in SQL/Queries

You can also use the Mid function in a query in Microsoft Access.

For example:

Microsoft Access

In this query, we have used the Mid function as follows:

Expr1: Mid([CategoryName],3,10)

This query will return 10 characters from the CategoryName field starting with the 3rd position in the string. The results will be displayed in a column called Expr1. You can replace Expr1 with a column name that is more meaningful.

For example:

PartialName: Mid([CategoryName],3,10)

The results would now be displayed in a column called PartialName.

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