Question

int i=st.executeUpdate("update tbl_loginprogrammer1 
       JOIN tbl_loginprogrammer 
       ON tbl_loginprogrammer1.pid = tbl_loginprogrammer.proid 
     SET tbl_loginprogrammer1.assigned = 'project3' 
     where pid=(select min(proid) from tbl_loginprogrammer where planguage='java' and status='finished')"); 

它显示一个错误 字符串文字没有通过双引号正确关闭。

我如何克服这个问题？ 在此先感谢。

Answer 1

int i=st.executeUpdate(
"update tbl_loginprogrammer1"+ 
" JOIN tbl_loginprogrammer"+ 
" ON tbl_loginprogrammer1.pid = tbl_loginprogrammer.proid"+ 
" SET tbl_loginprogrammer1.assigned = 'project3'"+ 
" where pid=("+ 
"  select min(proid) "+ 
" from tbl_loginprogrammer "+ 
" where planguage='java' and status='finished'"+ 
" )");