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Microsoft Access database specifications Access database
Table
| Attribute |
Maximum |
| Number of characters in a table name |
64 |
| Number of characters in a field name |
64 |
| Number of fields in a table |
255 |
| Number of open tables |
2048; the actual number may be less because of tables opened internally by Microsoft Access |
| Table size |
2 gigabyte minus the space needed for the system objects |
| Number of characters in a Text field |
255 |
| Number of characters in a Memo field |
65,535 when entering data through the user interface;
1 gigabyte of character storage when entering data programmatically |
| Size of an OLE Object field |
1 gigabyte |
| Number of indexes in a table |
32 |
| Number of fields in an index |
10 |
| Number of characters in a validation message |
255 |
| Number of characters in a validation rule |
2,048 |
| Number of characters in a table or field description |
255 |
| Number of characters in a record (excluding Memo and OLE Object fields) when the UnicodeCompression property of the fields is set to Yes |
4,000 |
| Number of characters in a field property setting |
255 |
Query
| Attribute |
Maximum |
| Number of enforced relationships |
32 per table minus the number of indexes that are on the table for fields or combinations of fields that are not involved in relationships |
| Number of tables in a query |
32 |
| Number of fields in a recordset |
255 |
| Recordset size |
1 gigabyte |
| Sort limit |
255 characters in one or more fields |
| Number of levels of nested queries |
50 |
| Number of characters in a cell in the query design grid |
1,024 |
| Number of characters for a parameter in a parameter query |
255 |
| Number of ANDs in a WHERE or HAVING clause |
99 |
| Number of characters in an SQL statement |
approximately 64,000 |
Form and report
| Attribute |
Maximum |
| Number of characters in a label |
2,048 |
| Number of characters in a text box |
65,535 |
| Form or report width |
22 in. (55.87 cm) |
| Section height |
22 in. (55.87 cm) |
| Height of all sections plus section headers (in Design view (Design view: A window that shows the design of these database objects: tables, queries, forms, reports, macros, and data access pages. In Design view, you can create new database objects and modify the design of existing ones.)) |
200 in. (508 cm) |
| Number of levels of nested forms or reports |
7 |
| Number of fields or expressions you can sort or group on in a report |
10 |
| Number of headers and footers in a report |
1 report header/footer; 1 page header/footer; 10 group headers/footers |
| Number of printed pages in a report |
65,536 |
| Number of controls and sections you can add over the lifetime of the form or report |
754 |
| Number of characters in an SQL statement that serves as the Recordsource or Rowsource property of a form, report, or control (both .mdb and .adp) |
32,750 |
Macro
Microsoft Access project specificationsAccess project
Microsoft SQL Server database
Microsoft SQL Server maximum capacity specifications are described in the SQL Server documentation. For more information about SQL Server Books Online, see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/startsql/getstart_4fht.asp, on the MSDN Web site. Form and report
| Attribute |
Maximum |
| Number of characters in a label |
2,048 |
| Number of characters in a text box |
65,535 |
| Form or report width |
22 in. (55.87 cm) |
| Section height |
22 in. (55.87 cm) |
| Height of all sections plus section headers (in Design view (Design view: A window that shows the design of these database objects: tables, queries, forms, reports, macros, and data access pages. In Design view, you can create new database objects and modify the design of existing ones.)) |
200 in. (508 cm) |
| Number of levels of nested forms or reports |
7 |
| Number of fields or expressions you can sort or group on in a report |
10 |
| Number of headers and footers in a report |
1 report header/footer; 1 page header/footer; 10 group headers/footers |
| Number of printed pages in a report |
65,536 |
| Number of controls and sections you can add over the lifetime of the form or report |
754 |
| Number of characters in an SQL statement that serves as the Recordsource or Rowsource property of a form, report, or control (both .mdb and .adp) |
32,750 |
Macro
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