To be, or not to be: that is the question

<br />select * from TTable1 for update 锁定表的所有行，只能读不能写 <br />  <br />2  select * from TTable1 where pkid = 1 for update 只锁定pkid=1的行 <br /><br />3  select * from Table1 a join Table2 b on a.pkid=b.pkid for update 锁定两个表的所有记录 <br />  <br />4 select * from Tabl

oracle,嵌入式SQL

package vtone.tools;import java.sql.Connection;import java.sql.Driver;import java.sql.DriverManager;import java.sql.SQLException;