在2008年服务器范围内。
I m working on compressing and migrating values from a column with Text datatype to another one with Image datatype, same table. For now, we don t want to drop the Text column. So, I m just setting all the values of that column to NULL.
是否为挪威航天中心提供空间收益? i.e. 缩小数据库规模?
这栏是否删除?
如果不是的话,还需要做些什么来声称未使用的空间?
为了实际减少DATABASE的规模,你需要:
我不建议缩小,因为它会造成分裂。 然而,数据库的磁带不会自动下降。 您将拥有一个数据库,内有空空空间,可填充更多的数据/索引,而不进一步开发数据库。
Text column takes minimum 16 char value for a column value in single row of table. To claim the free space reorganize data and index after setting all value to null in this column.
为了恢复这一空间,我们必须使用DBCLEANTABLE,或缩小数据库。
Syntax: DBCC CLEANTABLE( Databasename, "Table_name or View_name")
http://technet.microsoft.com/en-us/library/cc917715.aspx“rel=” 参照这一链接,并重新列出表格。
给全国人民党树立了价值观,这没有任何变化。 排入各栏不会自行腾出磁盘空间。 页: 1 Space Taken by Dropped Columns
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