Home Database Mysql Tutorial 设置Access项目中检索的记录数

设置Access项目中检索的记录数

Jun 07, 2016 pm 04:23 PM
access Search Record set up

设置Access项目中检索的记录数: 在使用 Microsoft Access 项目的窗体或数据表中的数据时,为了提高性能,可以设置从 SQL Server 数据库下载的最大记录数。 1.在导航模式中打开数据表或窗体。 2.执行下列操作之一: 从记录菜单中选择最大记录数。 单击导航按

   设置Access项目中检索的记录数:

  在使用 Microsoft Access 项目的窗体或数据表中的数据时,为了提高性能,可以设置从 SQL Server 数据库下载的最大记录数。

  1.在“导航”模式中打开数据表或窗体。

  2.执行下列操作之一:

  从“记录”菜单中选择“最大记录数”。

  单击导航按钮右侧的“最大记录数限制”。

  3.在“设置最大记录数”对话框中,在文本框内键入最大记录数。键入 0 表示没有限制,将检索所有记录。

  注释:删除限制时应慎重,当窗体或数据表的记录集很大时更是如此,因为这会降低 Access 项目的性能。不过,如果要将数据导出到其他 Access 项目,或者为复制数据而运行追加查询或生成表查询,则可以因需要检索全部记录,而将最大记录数限制设为 0。

  请注意:如果最大记录数限制的设置值很高,并且浏览数据花了很长时间,则可单击“取消查询” 或按 Ctrl+Break 取消操作。

  如果正在使用窗体,当调整设置值时,Microsoft Access 会将设置值与窗体一起保存。对所有新窗体和数据表默认的最大记录限制是 10,000,但可更改默认限制值。若要更改默认的限制值,,请单击“工具”菜单上的“选项”,再单击“高级”选项卡,并更改“默认的最大记录数”文本框中的默认数值。输入 0 表示默认没有限制。还可以通过“最大记录”属性设置单个窗体的默认值。

  默认情况下,Access 显示最大记录限制按钮。但是,可通过设置窗体或数据表的“最大记录按钮”属性为“否”来隐藏该按钮。该属性对菜单命令没有影响。

  Access 异步地从 SQL Server 数据库载入记录,就是说,可在所有记录被检索之前与 Access 进行交互。Access 在最大记录按钮旁显示从 SQL Server 数据库载入的记录数。

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