mybatis+oracle, program stuck on insertion












0















I'm writing a program with Java and myBatis. The program gets stuck with the following insertion with no error message. I checked Oracle and no data was inserted. I'm clueless why this is the case. Normally there would be some sort of error from either the sql or myBatis.



id type     number(10)
id_card_no varchar2(50)
gene_info varchar2(2000)


If more information is required, ask away. Thanks!



<insert id="addGenotype" parameterType="genotype" useGeneratedKeys="false" >
insert into person_genotype (ID,ID_CARD_NO,GENE_INFO)
<foreach collection="list" item="genotype" index="index" separator="UNION ALL">
(select
#{genotype.genotypeId},#{genotype.idCardNumber},#{genotype.geneInfo}
FROM DUAL)
</foreach>
</insert>









share|improve this question

























  • Why do you use foreach and SELECT FROM DUAL?

    – Evgeni Enchev
    Nov 20 '18 at 7:00











  • @EvgeniEnchev Initially I used values instead of select from dual, comma instead of union all as separator, but I found out it would work with mysql but not oracle. I learned this way from another post.

    – Andy Li
    Nov 20 '18 at 7:03











  • the grammar would be insert into table(...) (select ... from dual) union all (select ... from dual)

    – Andy Li
    Nov 20 '18 at 7:06
















0















I'm writing a program with Java and myBatis. The program gets stuck with the following insertion with no error message. I checked Oracle and no data was inserted. I'm clueless why this is the case. Normally there would be some sort of error from either the sql or myBatis.



id type     number(10)
id_card_no varchar2(50)
gene_info varchar2(2000)


If more information is required, ask away. Thanks!



<insert id="addGenotype" parameterType="genotype" useGeneratedKeys="false" >
insert into person_genotype (ID,ID_CARD_NO,GENE_INFO)
<foreach collection="list" item="genotype" index="index" separator="UNION ALL">
(select
#{genotype.genotypeId},#{genotype.idCardNumber},#{genotype.geneInfo}
FROM DUAL)
</foreach>
</insert>









share|improve this question

























  • Why do you use foreach and SELECT FROM DUAL?

    – Evgeni Enchev
    Nov 20 '18 at 7:00











  • @EvgeniEnchev Initially I used values instead of select from dual, comma instead of union all as separator, but I found out it would work with mysql but not oracle. I learned this way from another post.

    – Andy Li
    Nov 20 '18 at 7:03











  • the grammar would be insert into table(...) (select ... from dual) union all (select ... from dual)

    – Andy Li
    Nov 20 '18 at 7:06














0












0








0








I'm writing a program with Java and myBatis. The program gets stuck with the following insertion with no error message. I checked Oracle and no data was inserted. I'm clueless why this is the case. Normally there would be some sort of error from either the sql or myBatis.



id type     number(10)
id_card_no varchar2(50)
gene_info varchar2(2000)


If more information is required, ask away. Thanks!



<insert id="addGenotype" parameterType="genotype" useGeneratedKeys="false" >
insert into person_genotype (ID,ID_CARD_NO,GENE_INFO)
<foreach collection="list" item="genotype" index="index" separator="UNION ALL">
(select
#{genotype.genotypeId},#{genotype.idCardNumber},#{genotype.geneInfo}
FROM DUAL)
</foreach>
</insert>









share|improve this question
















I'm writing a program with Java and myBatis. The program gets stuck with the following insertion with no error message. I checked Oracle and no data was inserted. I'm clueless why this is the case. Normally there would be some sort of error from either the sql or myBatis.



id type     number(10)
id_card_no varchar2(50)
gene_info varchar2(2000)


If more information is required, ask away. Thanks!



<insert id="addGenotype" parameterType="genotype" useGeneratedKeys="false" >
insert into person_genotype (ID,ID_CARD_NO,GENE_INFO)
<foreach collection="list" item="genotype" index="index" separator="UNION ALL">
(select
#{genotype.genotypeId},#{genotype.idCardNumber},#{genotype.geneInfo}
FROM DUAL)
</foreach>
</insert>






java sql oracle optimization mybatis






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share|improve this question













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edited Nov 20 '18 at 5:51









Littlefoot

22.3k71533




22.3k71533










asked Nov 20 '18 at 5:31









Andy LiAndy Li

15




15













  • Why do you use foreach and SELECT FROM DUAL?

    – Evgeni Enchev
    Nov 20 '18 at 7:00











  • @EvgeniEnchev Initially I used values instead of select from dual, comma instead of union all as separator, but I found out it would work with mysql but not oracle. I learned this way from another post.

    – Andy Li
    Nov 20 '18 at 7:03











  • the grammar would be insert into table(...) (select ... from dual) union all (select ... from dual)

    – Andy Li
    Nov 20 '18 at 7:06



















  • Why do you use foreach and SELECT FROM DUAL?

    – Evgeni Enchev
    Nov 20 '18 at 7:00











  • @EvgeniEnchev Initially I used values instead of select from dual, comma instead of union all as separator, but I found out it would work with mysql but not oracle. I learned this way from another post.

    – Andy Li
    Nov 20 '18 at 7:03











  • the grammar would be insert into table(...) (select ... from dual) union all (select ... from dual)

    – Andy Li
    Nov 20 '18 at 7:06

















Why do you use foreach and SELECT FROM DUAL?

– Evgeni Enchev
Nov 20 '18 at 7:00





Why do you use foreach and SELECT FROM DUAL?

– Evgeni Enchev
Nov 20 '18 at 7:00













@EvgeniEnchev Initially I used values instead of select from dual, comma instead of union all as separator, but I found out it would work with mysql but not oracle. I learned this way from another post.

– Andy Li
Nov 20 '18 at 7:03





@EvgeniEnchev Initially I used values instead of select from dual, comma instead of union all as separator, but I found out it would work with mysql but not oracle. I learned this way from another post.

– Andy Li
Nov 20 '18 at 7:03













the grammar would be insert into table(...) (select ... from dual) union all (select ... from dual)

– Andy Li
Nov 20 '18 at 7:06





the grammar would be insert into table(...) (select ... from dual) union all (select ... from dual)

– Andy Li
Nov 20 '18 at 7:06












1 Answer
1






active

oldest

votes


















1














Most probably there's another session to the database that inserted the row with the same primary key but has not committed yet. It is a rather common scenario to have SQL*Plus running with some uncommitted changes.



In Oracle if two concurrent transaction insert into the same table the row that conflicts on some unique key one of them would block until the other either commit or rollback.



One of the way to overcome this is to automatically generate identifiers for rows using a sequence. In this case every new record would get its own brand-new unique ID.






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    1 Answer
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    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    Most probably there's another session to the database that inserted the row with the same primary key but has not committed yet. It is a rather common scenario to have SQL*Plus running with some uncommitted changes.



    In Oracle if two concurrent transaction insert into the same table the row that conflicts on some unique key one of them would block until the other either commit or rollback.



    One of the way to overcome this is to automatically generate identifiers for rows using a sequence. In this case every new record would get its own brand-new unique ID.






    share|improve this answer






























      1














      Most probably there's another session to the database that inserted the row with the same primary key but has not committed yet. It is a rather common scenario to have SQL*Plus running with some uncommitted changes.



      In Oracle if two concurrent transaction insert into the same table the row that conflicts on some unique key one of them would block until the other either commit or rollback.



      One of the way to overcome this is to automatically generate identifiers for rows using a sequence. In this case every new record would get its own brand-new unique ID.






      share|improve this answer




























        1












        1








        1







        Most probably there's another session to the database that inserted the row with the same primary key but has not committed yet. It is a rather common scenario to have SQL*Plus running with some uncommitted changes.



        In Oracle if two concurrent transaction insert into the same table the row that conflicts on some unique key one of them would block until the other either commit or rollback.



        One of the way to overcome this is to automatically generate identifiers for rows using a sequence. In this case every new record would get its own brand-new unique ID.






        share|improve this answer















        Most probably there's another session to the database that inserted the row with the same primary key but has not committed yet. It is a rather common scenario to have SQL*Plus running with some uncommitted changes.



        In Oracle if two concurrent transaction insert into the same table the row that conflicts on some unique key one of them would block until the other either commit or rollback.



        One of the way to overcome this is to automatically generate identifiers for rows using a sequence. In this case every new record would get its own brand-new unique ID.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 20 '18 at 12:53

























        answered Nov 20 '18 at 7:44









        Roman KonovalRoman Konoval

        7,97612232




        7,97612232
































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