The microsoft access 2016 data type of autonumber is used when there is a specific need for a free d.Data type of formatted Autonumber - Microsoft Community

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The following table lists the data types available in desktop databases in Access and later versions. Data Type. Usage. Size. Short Text (formerly known as “Text”) Alphanumeric data (names, titles, etc.) Up to characters. Long Text (formerly known as “Memo”. Large amounts of alphanumeric data: sentences and paragraphs. Nov 25,  · I need to know how to make a custom autonumber in this format: R R=Requisition. 12=Last two digits of Current Year. 07=Current Month. 24=Current Day. 00=Sequential Number. I have been to forum after forum and cannot get a clear understanding of how to create a custom autonumber in this format.

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Oct 23,  · Access Tip: Using the AutoNumber Data Type in Access. The AutoNumber data type automatically generates a unique number for each record that’s added to a table, and is commonly used for primary key fields. Seldom, if ever, should the value of the AutoNumber field be shown to your database users.