updatetz.Connection.Close();
if(updatetz.Connection.State==ConnectionState.Closed)
updatetz.Connection.Open();
try
{
updatetz.ExecuteNonQuery();
}
catch
{
}
finally
{
updatetz.Connection.Close();}
if(updatetz.Connection.State==ConnectionState.Closed)
updatetz.Connection.Open();
try
{
updatetz.ExecuteNonQuery();
}
catch
{
}
finally
{
updatetz.Connection.Close();}
update 的后面都有单引号,为什么where的后面没有单引号?( LZLJ_JH_KHBH = 'LZLJ_TZ_KHBH')