You can designate different result data types from the expression. You can create an expression that uses data from one or more fields. A complex lookup field allows you to store multiple values of the same data type in each row.ĭependent on the data type of the lookup field. When you choose this entry, a wizard starts to help you define either a simple or complex lookup field.Ī simple lookup field uses the contents of another table or a value list to validate the contents of a single value per row. The Lookup Wizard entry in the Data Type column in the Design view is not actually a data type. Up to 8,192 (each part of a Hyperlink data type can contain up to 2048 characters).
Text or combinations of text and numbers stored as text and used as a hyperlink address. OLE objects can store pictures, audio, video, or other BLOBs (Binary Large Objects) This data type is not available in earlier versions of Access. Multiple files can be attached per record. Here are some of the other more specialized data types, you can choose from in Access. A Variant containing an array requires 12 bytes more than the array alone. Set intrinsic data types The following table shows the supported data types, including storage sizes and ranges. The text field is referred to as short text and your memo field is now called long text. Data types include those in the following table as well as user-defined types and specific types of objects. In previous versions of Access these data types were called text and memo. In Access 2013, we now have two data types - short text and long text. If you use previous versions of Access, you will notice a difference for two of those data types. Yes and No values and fields that contain only one of two values (Yes/No, True/False, or On/Off). Numeric data used in mathematical calculations.ġ, 2, 4, or 8 bytes (16 bytes if set to Replication ID).ĭate and time values for the years 100 through 9999.Ĭurrency values and numeric data used in mathematical calculations involving data with one to four decimal places.Ī unique sequential (incremented by 1) number or random number assigned by Microsoft Access whenever a new record is added to a table.Ĥ bytes (16 bytes if set to Replication ID). Lengthy text or combinations of text and numbers. Text or combinations of text and numbers, including numbers that do not require calculating (e.g. Here are some of the most common data types you will find used in a typical Microsoft Access database. Each field can store data consisting of only a single data type.The data type determines the kind of the values that users can store in any given field.MS Access supports different types of data, each with a specific purpose. A field's data type determines what kind of data it can store. The most important property for a field is its data type. Every field in a table has properties and these properties define the field's characteristics and behavior.
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