用mysql中的循環填充表格

我試圖將數據從一個表格移動到另一個表格，因爲項目的需求已經改變。我想LOOP會工作，但我不斷收到錯誤（它讓我很煩惱非mysql描述的非錯誤消息）。用mysql中的循環填充表格

這裏是我的代碼：

SET @resid := 0; 
SET @total := (SELECT COUNT(*) FROM reservations) + 1; 
BEGIN 
    label1: LOOP 
    IF @resid < @total THEN 
     SET @resid = @resid + 1 
     INSERT INTO reservationbody(reservationid, time_in, time_out, ToLocation, FromLocation, startkm, endkm) 
     VALUES(
      (SELECT 
       reservationid, 
       time_in, 
       time_out, 
       ToLocation, 
       FromLocation, 
       startkm, 
       endkm 
      FROM reservations WHERE reservationid = @resid) 
     ); 
     INSERT INTO reservationbody(reservationid, time_in, time_out, ToLocation, FromLocation, startkm, endkm) 
     VALUES(
      (SELECT 
       reservationid, 
       time_in, 
       time_out, 
       FromLocation, 
       'Home', 
       startkm, 
       endkm 
      FROM reservations WHERE reservationid = @resid) 
     ); 
    END IF; 
    LEAVE lable1; 
    END LOOP 
END;

這應該創建一個在reservationbody表2列在預訂表的每一行。我認爲這個問題是與循環，但我已經建立了基於MySQL手冊鏈接，這個查詢在http://dev.mysql.com/doc/refman/5.0/en/loop-statement.html

這裏的錯誤（或多個）

0 ROW(s) affected 

Execution TIME : 0.035 sec 
Transfer TIME : 0.002 sec 
Total TIME  : 0.038 sec 
--------------------------------------------------- 

0 ROW(s) affected 

Execution TIME : 0.037 sec 
Transfer TIME : 0.001 sec 
Total TIME  : 0.039 sec 
--------------------------------------------------- 

QUERY: BEGIN label1: LOOP IF @resid < @total THEN SET @resid = @resid + 1 INSERT INTO reservationbody(reservationid, time_in, time_out... 

Error CODE: 1064 
You have an error IN your SQL syntax; CHECK the manual that corresponds TO your MySQL SERVER VERSION FOR the RIGHT syntax TO USE near 'label1: Loop 
     if @resid < @total then 
      set @resid = @resid + 1 
      INSERT INTO' AT line 2 

Execution TIME : 0 sec 
Transfer TIME : 0 sec 
Total TIME  : 0.039 sec 
--------------------------------------------------- 

QUERY: INSERT INTO reservationbody(reservationid, time_in, time_out, ToLocation, FromLocation, startkm, endkm) VALUES((SELECT reserva... 

Error CODE: 1136 
COLUMN COUNT doesn't match value count at row 1 

Execution Time : 0 sec 
Transfer Time : 0 sec 
Total Time  : 0.040 sec 
--------------------------------------------------- 

Query: end if 

Error Code: 1064 
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'END IF' at line 1 

Execution Time : 0 sec 
Transfer Time : 0 sec 
Total Time  : 0.039 sec 
--------------------------------------------------- 

Query: leave lable1 

Error Code: 1064 
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LEAVE lable1' at line 1 

Execution Time : 0 sec 
Transfer Time : 0 sec 
Total Time  : 0.038 sec 
--------------------------------------------------- 

Query: end loop end 

Error Code: 1064 
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'END LOOP 
    END' at line 1 

Execution Time : 0 sec 
Transfer Time : 0 sec 
Total Time  : 0.035 sec 
---------------------------------------------------

誰能告訴我有什麼不對？

在此先感謝您的幫助！

來源

2012-05-14 Ortund

你可以簡單地做出來，沒有循環，只是執行INSERT ... SELECT語句兩次 -

INSERT INTO reservationbody(reservationid, time_in, time_out, ToLocation, FromLocation, startkm, endkm) 
    SELECT reservationid, time_in, time_out, ToLocation, FromLocation, startkm, endkm FROM reservations; 

INSERT INTO reservationbody(reservationid, time_in, time_out, ToLocation, FromLocation, startkm, endkm) 
    SELECT reservationid, time_in, time_out, FromLocation, 'Home', startkm, endkm FROM reservations;

來源

2012-05-14 11:00:50 Devart

用mysql中的循環填充表格

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