Topic: 求助(SQL, 查询时返回记录的行数) |
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1.求助(SQL, 查询时返回记录的行数) | Copy to clipboard |
Posted by: lys0410 Posted on: 2006-08-19 17:36 请问:JAVA类中哪个类的方法在连接数据库查询记录时能返回记录的行数? |
2.Re:求助 [Re: lys0410] | Copy to clipboard |
Posted by: Novo Posted on: 2006-08-19 18:01 用查询语言也可以实现啊. select Count(*) from xxxxxx wherexxxxxx |
3.Re:求助 [Re: lys0410] | Copy to clipboard |
Posted by: lys0410 Posted on: 2006-08-19 18:23 那个我知道 但是在连接数据库时,在JAVA中的发送SQL文时可以写多少行的SQL语句呢? 只能写一条吗? |
4.Re:求助(发送SQL文时可以写多少行) [Re: lys0410] | Copy to clipboard |
Posted by: why Posted on: 2006-08-19 20:24 lys0410 wrote: if the DB server supports this, you could have multiple SQL statements in a String and use execute() instead of executeQuery() or executeUpdate(), and then getMoreResults() or getUpdateCount() to retrieve individual ResultSet or update count. |
5.Re:求助(SQL, 查询时返回记录的行数) [Re: lys0410] | Copy to clipboard |
Posted by: jameszhang Posted on: 2006-08-20 07:42 jdbc 有 执行一条 SQL,也可以 批量执行 SQL,同样SQL只是可以传入参数,批量执行 |
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