Access數(shù)據(jù)庫容量及規(guī)格大全-最大容量 表最多個數(shù) 查詢 字段容量等(中英文對照) 以Access 2010的為準(zhǔn),2013比較接近
*如果查詢包含多值查閱字段,則最大值可能要小一些。 |
屬性 | 最大值 |
標(biāo)簽中的字符個數(shù) | 2,048 |
文本框中的字符個數(shù) | 65,535 |
窗體或報表寬度 | 22 英寸(55.87 厘米) |
節(jié)高度 | 22 英寸(55.87 厘米) |
所有節(jié)加上節(jié)頁眉的高度(在設(shè)計視圖中) | 200 英寸(508 厘米) |
窗體或報表的最大嵌套層數(shù) | 7 |
報表中可作為排序或分組依據(jù)的字段或表達(dá)式的個數(shù) | 10 |
報表中頁眉和頁腳的個數(shù) | 1 對報表頁眉/頁腳;1 對頁面頁眉/頁腳;10 對組頁眉/頁腳 |
報表的顯示頁數(shù) | 65,536 |
在窗體或報表的生命周期中可添加的控件和節(jié)的個數(shù) | 754 |
SQL 語句中作為窗體、報表或控件(.accdb 和 .adp)的 Recordsource或 Rowsource 屬性的字符個數(shù) | 32,750 |
屬性 | 最大值 |
宏中的操作個數(shù) | 999 |
條件中的字符個數(shù) | 255 |
備注中的字符個數(shù) | 255 |
操作參數(shù)中的字符個數(shù) | 255 |
屬性 | 最大值 |
Access 項目 (.adp) 中的對象個數(shù) | 32,768 |
模塊(包括 HasModule 屬性設(shè)置為 True 的窗體和報表)數(shù) | 1,000 |
對象名稱中的字符數(shù) | 64 |
表中的列數(shù) | 250 (Microsoft SQL Server 6.5) 1024(Microsoft SQL Server 7.0、2000 和 2005) |
在 SQL Server 文檔中介紹了 Microsoft SQL Server 的最大容量規(guī)格。 |
屬性 | 最大值 |
標(biāo)簽中的字符個數(shù) | 2,048 |
文本框中的字符個數(shù) | 65,535 |
窗體或報表寬度 | 22 英寸(55.87 厘米) |
節(jié)高度 | 22 英寸(55.87 厘米) |
所有節(jié)加上節(jié)頁眉的高度(在設(shè)計視圖中) | 200 英寸(508 厘米) |
窗體或報表的最大嵌套層數(shù) | 7 |
報表中可作為排序或分組依據(jù)的字段或表達(dá)式的個數(shù) | 10 |
報表中頁眉和頁腳的個數(shù) | 1 對報表頁眉/頁腳;1 對頁面頁眉/頁腳;10 對組頁眉/頁腳 |
報表的顯示頁數(shù) | 65,536 |
在窗體或報表的生命周期中可添加的控件和節(jié)的個數(shù) | 754 |
SQL 語句中作為窗體、報表或控件(.accdb 和 .adp)的 Recordsource或 Rowsource 屬性的字符個數(shù) | 32,750 |
屬性 | 最大值 |
宏中的操作個數(shù) | 999 |
條件中的字符個數(shù) | 255 |
備注中的字符個數(shù) | 255 |
操作參數(shù)中的字符個數(shù) | 255 |
Attribute | Maximum |
Access database (.accdb) file size | 2 gigabytes, minus the space needed for system objects Note: Although the maximum size for a single database file is 2GB, you can work around this limitation by using a split database. A front-end database file can point to thousands of back-end database files, each of which could be as large as 2GB. |
Number of objects in a database | 32,768 |
Number of modules (including forms and reports that have the HasModule property set to True) | 1,000 |
Number of characters in an object name | 64 |
Number of characters in a password | 20 (for MS Access 2007) 14 (for MS Access 2003) |
Number of characters in a user name or group name | 20 |
Number of concurrent users | 255 |
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 might be smaller because of tables opened internally by 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; 2 gigabytes (for MS Access 2007) and 1 gigabyte (for MS Access 2003) 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 theUnicodeCompression property of the fields is set to Yes | 4,000 |
Number of characters in a field property setting | 255 |
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 joins in a query | 16* |
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 AND operators in a WHERE or HAVING clause | 99* |
Number of characters in an SQL statement | Approximately 64,000* |
Attribute | Maximum |
Max mdb file size | 2GB |
Max table size | 1GB |
Max objects in database | 32768 |
Max modules in database | 1000 |
Max object name length | 64 |
Max password length | 14 |
Max user/group name length | 20 |
Max users connected to database | 255 |
Max record length (without Memos and BLOBs) | 2048 |
Max fields in table | 255 |
Attribute | Maximum |
Max mdb file size | 1GB |
Max objects in database | 32768 |
Max modules in database | 1024 |
Max object name length | 64 |
Max password length | 14 |
Max user/group name length | 20 |
Max users connected to database | 255 |
Max record length (without Memos and BLOBs) | 2048 |
Max fields in table | 255 |
Max nested transactions | 7 |
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