At some level, the SQL UPDATE statement is the union of the SQL INSERT and DELETE statements, because you must select rows to modify as well as specify how to modify them.
在某种程度上,SQLupdate语句是SQLINSERT和delete语句的联合,因为您必须选择要修改的行,还必须指定如何修改它们。
FREEPAGE should be used if your table rows are larger than half a page, since you cannot INSERT a second row on a page in such circumstances.
如果表行大于页宽的一半,则应该使用FREEPAGE,因为在那样的环境下不能在一页上再INSERT一行。
To verify that replication is working, add a couple of new rows to one of the source tables using the INSERT command from the Sun server command prompt.
要验证复制正在运作,从Sun服务器命令提示符使用INSERT命令向其中一个源表添加两个新行。
UPDATE is an INSERT, UPDATE, DELETE, or MERGE operation that may have input parameters and that returns an integer (number of affected rows).
更新是一个INSERT、UPDATE、DELETE或MERGE操作,可以有输入参数,返回一个整数(受影响的行数)。
Instead, you could load the 1M rows into a staging table, then run eight concurrent insert ...
相反,您可以将1M 的行装载到一个staging表中,然后运行8 条并发的insert ...
If it's not possible for you to pass multiple rows in one insert, the next best thing is to combine multiple inserts into a group that all get passed together from the client to the server.
如果不可能在一条insert语句中传递多行,那么最好是将多条insert语句组成一组,将它们一起从客户机传递到服务器。
Go ahead and populate the EMPLOYEE table with the rest of the rows shown in table 1 using insert syntax like that above.
按照表1给出的数据,继续使用和上面类似的insert语法填充employee表中剩下的行。
An after-insert trigger on the IWH.EDITION table is not useful, as only rows with a status value of start would be intercepted.
edition表上的after - insert触发器并非很有用,因为它只能截获其status值为start的记录行。
An after-insert trigger on the IWH.EDITION table is not useful, as only rows with a status value of start would be intercepted.
edition表上的after - insert触发器并非很有用,因为它只能截获其status值为start的记录行。
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