[英]Mysql - Concat - Procedure execution failed
I have 123 tables as well: M001 -> M010 -> M123. 我也有123个表格:M001-> M010-> M123。 each is a client.
每个都是一个客户。 when it reaches a record to a parent table with a trigger call a function like this:
当它通过触发器到达父表的记录时,调用以下函数:
Declare MasterX int;
Set MasterX = New.Master;
Call Lecturas_Insertar(MasterX,New.Id);
This is my function: 这是我的功能:
BEGIN
#Set Master
If MasterX < 10 Then
Set MasterX = Concat("lecturas.M00",MasterX);
End If;
#Set Master
If MasterX Between 10 and 99 Then
Set MasterX = Concat("lecturas.M0",MasterX);
End If;
set @a=concat("INSERT INTO ",MasterX, "(Id) Values(" ,Id, ")");
PREPARE stmt1 FROM @a;
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;
END
But it always throws me the following error: 但这总是引发以下错误:
Procedure execution failed
1146 - Table 'lecturas.M' does not exist
Thanks for the Help of All 感谢大家的帮助
Try this script - 试试这个脚本-
BEGIN
SET @a = CONCAT('INSERT INTO lecturas.M', LPAD(MasterX, 3, 0), '(Id) Values(', Id, ')');
PREPARE stmt1 FROM @a;
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;
END
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