我希望我的迁移过程在适当的时候返回标准的sqlstate代码。成功的标准代码是“ 00000”,但是当我发出此sqlstate信号时,出现以下错误:
Error Code: 1407. Bad SQLSTATE: '00000'
这是它抱怨的代码。如果我将状态更改为01000,则可以使用它,所以这不是我的语法。
signal sqlstate '00000'
set message_text = '::SUCCESS::'
答案 0 :(得分:2)
根据文档:
https://dev.mysql.com/doc/refman/5.5/en/signal.html
在以下描述中,“未处理”表示没有用于 用DECLARE ... HANDLER定义了发出信号的SQLSTATE值。
<xctk:IntegerUpDown x:Name="Day" Value="{Binding DayText, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Style="{StaticResource IntegerUpDownStyle}" Minimum="{Binding MinimumDateSelection}" Maximum="{Binding MaximumDateSelection}"> <xctk:IntegerUpDown.Watermark> <TextBlock Text="Day" Foreground="{StaticResource OffsetWhiteBrush}" Margin="0,0,60,0"/> </xctk:IntegerUpDown.Watermark> </xctk:IntegerUpDown> <!-- Textbox and PasswordBox base styling for login boxes --> <Style x:Key="IntegerUpDownStyle" TargetType="{x:Type Control}" BasedOn="{StaticResource BaseTextStyle}"> <Setter Property="MaxWidth" Value="400" /> <Setter Property="BorderThickness" Value="0" /> <Setter Property="FontSize" Value="{StaticResource FontSize20}" /> <Setter Property="FontFamily" Value="{StaticResource LatoRegular}" /> <Setter Property="Background" Value="{StaticResource DarkGreyBrush}" /> <Setter Property="Margin" Value="0,20,0,0" /> <Style.Triggers> <Trigger Property="IsFocused" Value="True"> <Setter Property="Background" Value="{StaticResource LightGreyBrush}" /> </Trigger> <Trigger Property="Validation.HasError" Value="True"> <Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=(Validation.Errors)[0].ErrorContent}" /> </Trigger> </Style.Triggers> </Style>
换句话说,您只能使用“信号”来返回 ERROR 条件。 NOT 呼叫信号表示“成功”。
Class = '00' (success)
Illegal. SQLSTATE values that begin with '00' indicate success and are not valid for SIGNAL.