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You can adjust the amount of space that each record in an Access table uses by changing the field size property of number fields in the table. You can also change the field size of a field that stores text data, although this action has a smaller effect on the amount of space that is used.
For example, you can control the size of a Short Text field by setting its Field Size property. For Number and Currency fields, the Field Size property is especially important, because it determines the range of field values.
The size of the values that you store in a Number or Currency field depends on how you set the Field Size property. For example, you can set fields to contain 1-byte, 2-byte, 4-byte, 8-byte, or 16-byte values, plus Replication IDs (globally unique identifier values, or GUIDs) and decimal values.
The table design view has setting options to create default custom settings for tables, such as text font type and size, setting for fields name prefixes or suffices, and settings that make it possible for Access to automatically index fields.
This article explains how to modify or change the data type applied to a table field in an Access database. When you first design and build a database, you plan one or more tables, you plan the fields (columns) for each table, and you set a data type for each field.
Tip To migrate an Access floating point data type, convert it first to a Number data type, set the Field Size property to Decimal, and then migrate the data to Dataverse, which will store it as a Decimal Number data type.
You can adjust the amount of space that each record in an Access table uses by changing the field size property of number fields in the table. You can also change the field size of a field that stores text data, although this action has a smaller effect on the amount of space that is used.
You can attach files such as pictures, documents, spreadsheets, or charts; each Attachment field can contain an unlimited number of attachments per record, up to the storage limit of the size of a database file.
Access data types are differently named from SQL Server data types. For example, a SQL Server column of the bit data type is imported or linked into Access with the Yes/No data type. The following table compares SQL Server and Access data types. For more information, see Using the Large Number data type. Encoded string of 42 bytes.
For example, the Field Size property of a field restricts input by limiting the amount of data. You can also use the Validation Rule property to require specific values, and the Validation Text property to alert your users to any mistakes.
This article explains how to create a table, add fields to a table, set a table's primary key, and how to set field and table properties. Before you create tables and add fields, make sure you understand the background concepts. For more information, see Introduction to tables. In this article.