Data Conversion while creating table in MYSQL - mysql

Question

Error while creating table but the SQL is retrieving result
Please find the below code, the below SQL by itself is working fine retrieving results!
SELECT
CASE WHEN J.JOBID = DJ.JOBNUMBER
THEN DJ.JOBID ELSE J.JOBID
END AS JOBID,
J.DISTRICTID,
CASE WHEN D.DISTRICTID = J.DISTRICTID
THEN D.NAME ELSE NULL
END AS DISTRICT_NAME,
D.SEGMENTID,
CASE WHEN D.SEGMENTID = S.SEGMENTID AND D.DISTRICTID = J.DISTRICTID
THEN S.NAME ELSE NULL
END AS SEGMENT,
J.STARTTIME,
J.ENDTIME,
SJ.COMCATJOBTYPEID,
J.JOBTYPEID,
CASE WHEN J.JOBTYPEID = JT.JOBTYPEID
THEN JT.NAME ELSE NULL
END AS JOBTYPENAME,
TS.SSSEGMENT AS SUBPL_NAME,
CONCAT(D.DISTRICTID,TS.SSSEGMENT) AS DISTRICTSUBPLID
FROM `EAR-AA-242`.JOB J
LEFT JOIN `EAR-AA-242`.DISTRICT D ON J.DISTRICTID = D.DISTRICTID
LEFT JOIN `EAR-AA-242`.DMJOB DJ ON DJ.JOBNUMBER = J.JOBID
LEFT JOIN `EAR-AA-242`.JOBTYPE JT ON JT.JOBTYPEID = J.JOBTYPEID
LEFT JOIN `EAR-AA-242`.STANDARDJOBTYPE SJ ON JT.STANDARDJOBTYPEID = SJ.STANDARDJOBTYPEID
LEFT JOIN `EAR-AA-239`.TBLJOBTYPE TJ ON SJ.COMCATJOBTYPEID = TJ.JOBTYPEID
LEFT JOIN (SELECT SS.SSSEGMENT, SS.NODEID FROM `EAR-AA-239`.TBLSSSEGMENT S,
`EAR-AA-239`.TBLSSSEGMENT SS WHERE S.SSS = SS.PARENTSSS AND SS.DELETED = 0) TS ON TJ.SSSEGMENT =TS.NODEID
LEFT JOIN `EAR-AA-242`.SEGMENT S ON S.SEGMENTID = D.SEGMENTID
WHERE DATE(J.STARTTIME) > DATE_SUB(DATE(SYSDATE()), INTERVAL 367 DAY)
ORDER BY J.JOBID;
The same code code , while creating a table is throwing an
Error Code: 1292. Truncated incorrect DOUBLE value: '11COC0011'
CREATE TABLE ODS.JOB_LOCATION_IDISTRICT AS
SELECT
CASE WHEN J.JOBID = DJ.JOBNUMBER
THEN DJ.JOBID ELSE J.JOBID
END AS JOBID,
J.DISTRICTID,
CASE WHEN D.DISTRICTID = J.DISTRICTID
THEN D.NAME ELSE NULL
END AS DISTRICT_NAME,
D.SEGMENTID,
CASE WHEN D.SEGMENTID = S.SEGMENTID AND D.DISTRICTID = J.DISTRICTID
THEN S.NAME ELSE NULL
END AS SEGMENT,
J.STARTTIME,
J.ENDTIME,
SJ.COMCATJOBTYPEID,
J.JOBTYPEID,
CASE WHEN J.JOBTYPEID = JT.JOBTYPEID
THEN JT.NAME ELSE NULL
END AS JOBTYPENAME,
TS.SSSEGMENT AS SUBPL_NAME,
CONCAT(D.DISTRICTID,TS.SSSEGMENT) AS DISTRICTSUBPLID
FROM `EAR-AA-242`.JOB J
LEFT JOIN `EAR-AA-242`.DISTRICT D ON J.DISTRICTID = D.DISTRICTID
LEFT JOIN `EAR-AA-242`.DMJOB DJ ON DJ.JOBNUMBER = J.JOBID
LEFT JOIN `EAR-AA-242`.JOBTYPE JT ON JT.JOBTYPEID = J.JOBTYPEID
LEFT JOIN `EAR-AA-242`.STANDARDJOBTYPE SJ ON JT.STANDARDJOBTYPEID = SJ.STANDARDJOBTYPEID
LEFT JOIN `EAR-AA-239`.TBLJOBTYPE TJ ON SJ.COMCATJOBTYPEID = TJ.JOBTYPEID
LEFT JOIN (SELECT SS.SSSEGMENT, SS.NODEID FROM `EAR-AA-239`.TBLSSSEGMENT S,
`EAR-AA-239`.TBLSSSEGMENT SS WHERE S.SSS = SS.PARENTSSS AND SS.DELETED = 0) TS ON TJ.SSSEGMENT =TS.NODEID
LEFT JOIN `EAR-AA-242`.SEGMENT S ON S.SEGMENTID = D.SEGMENTID
WHERE DATE(J.STARTTIME) > DATE_SUB(DATE(SYSDATE()), INTERVAL 367 DAY)
ORDER BY J.JOBID;
Any help absolutely appreciated!!!

Answer 1

You should specify the datatypes of the columns explicitly. Without that, MySQL has to figure out what the types are. When you're using a CASE expression to return the values for a column, it assumes that the column datatype will be the same as the type of the first THEN value, but this will be wrong if other cases return a different type. In your code, you have some CASE expressions where the first result is DOUBLE, but another result is a CHAR string that can't be converted to DOUBLE.
So it should be
CREATE TABLE ODS.JOB_LOCATION_IDISTRICT (
JOBID VARCHAR(30),
DISTRICTID INT,
...
) AS
SELECT
...