MYSQL 使用来自不同表的外键将数据插入表中答案

【问题标题】：MYSQL Insert Data into table using Foreign Keys from different tablesMYSQL 使用来自不同表的外键将数据插入表中
【发布时间】：2016-07-04 14:44:24
【问题描述】：

我有一个由“LOAD DATA LOCAL INFILE”创建的临时表“teststepdump”。临时表包含了通过外键连接在一起的不同表的数据在表TestResult中：

teststepdump (dummyno, stationno, name, result)
duttest（ID、DUTID、processTime）
dut（ID，DummyNr）
站（ID，站号）
测试步骤名称（ID、名称）
teststepresult(DUTTestID,TeststepID,Result)

我正在使用存储过程尝试这种方式，但出现错误 1452：

SQL Fehler (1452)：无法添加或更新子行：外键约束失败（database.teststepresult, CONSTRAINT teststepresult_ibfk_1 外键 (DUTTestID) 引用 duttest (ID) 更新级联删除级联)

BEGIN
DECLARE dt_id INT;
SELECT teststepresult.DUTTestID INTO dt_id FROM teststepresult
INNER JOIN duttest ON teststepresult.DUTTestID = duttest.ID
INNER JOIN dut ON duttest.DUTID = dut.ID
INNER JOIN station ON duttest.StationID = station.Nummer
INNER JOIN teststepdump ON teststepresult.ID = teststepdump.ID
WHERE
dut.DummyNr = teststepdump.dummyno AND
station.Nummer = teststepdump.stationno;

INSERT INTO teststepresult (DUTTestID, TeststepID, Result) 
SELECT dt_id, teststepname.ID, teststepdump.Result 
FROM teststepdump
INNER JOIN teststepname ON teststepdump.name = teststepname.name
WHERE 
teststepname.name = teststepdump.name;
terminate teststepdump;
END

对于单个 INSERT，此存储过程对我有用，但我想避免“for”循环；：

BEGIN

DECLARE t_id INT;
DECLARE tn_id INT;

SELECT teststepname.ID INTO tn_id FROM teststepname 
WHERE  teststepname.Name = name;

SELECT duttest.ID INTO t_id FROM duttest
INNER JOIN dut ON duttest.DUTID = dut.ID 
INNER JOIN station ON duttest.stationID = station.ID
WHERE
dut.DummyNr = dummyno AND 
station.Nummer = stationno;

IF NOT t_id IS NULL AND NOT tn_id IS NULL THEN
INSERT INTO teststepresult (DUTTestID, TeststepID, Result) 
VALUES (t_id, tn_id, Result);
END IF;
END

【问题讨论】：

你能告诉我们表teststepdump的结构吗？（我的意思是创建sql代码）
创建表 teststepdump (ID INT(11) NOT NULL AUTO_INCREMENT, dummyno BIGINT(20) NOT NULL DEFAULT '0', stationno INT(11) NOT NULL DEFAULT ' 0', name VARCHAR(50) NOT NULL DEFAULT '0' COLLATE 'utf8_bin',Result TINYINT(4) NULL DEFAULT NULL, PRIMARY KEY (ID)
好像没有外键...能不能把teststepresult的结构展示一下？
是的，teststepdump 没有外键。
teststepresult 呢？

标签： mysql database stored-procedures

【解决方案1】：

我解决了问题！

BEGIN
INSERT INTO teststepresult (DUTTestID, StepName, Result) 
SELECT duttest.DUTID, teststepdump.name, teststepdump.Result 
FROM duttest
INNER JOIN dut ON duttest.DUTID = dut.ID
INNER JOIN station ON duttest.StationID = station.ID
INNER JOIN teststepdump ON dut.DummyNr = teststepdump.dummyno
WHERE 
dut.DummyNr = teststepdump.dummyno AND
station.Nummer = teststepdump.stationno;
#truncate teststepdump; 
END

【讨论】：