Contents
What are data types and field properties in access?
This article describes the data types and other field properties available in Access, and includes additional information in a detailed data type reference section. Data types can seem confusing for example, if a field’s data type is Text, it can store data that consists of either text or numerical characters.
What are the storage requirements for table data?
The storage requirements for table data on disk depend on several factors. Different storage engines represent data types and store raw data differently. Table data might be compressed, either for a column or an entire row, complicating the calculation of storage requirements for a table or column.
What kind of data can be stored in a field?
Data types can seem confusing for example, if a field’s data type is Text, it can store data that consists of either text or numerical characters. But a field whose data type is Number can store only numerical data.
How to change field size in access table?
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.
Can a field be predefined as a data type?
A field’s data type can be predefined or you will select a data type depending on how you create the new field. For example, if you create a field from the Datasheet view and: Use an existing field from another table, the data type is already defined in the template or in the other table.
Can a field be set to the AutoNumber data type?
In a relationship or a join, fields that are set to the AutoNumber data type are compatible with fields that are set to the Number data type if the Field Size property of the latter is Long Integer. You cannot change the data type or the Field Size property of a field that is involved in a table relationship.