mybatis+oracle, program stuck on insertion
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
add a comment |
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
Why do you useforeach
andSELECT 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
add a comment |
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
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
java sql oracle optimization mybatis
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 useforeach
andSELECT 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
add a comment |
Why do you useforeach
andSELECT 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
add a comment |
1 Answer
1
active
oldest
votes
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.
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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.
add a comment |
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.
add a comment |
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.
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.
edited Nov 20 '18 at 12:53
answered Nov 20 '18 at 7:44
Roman KonovalRoman Konoval
7,97612232
7,97612232
add a comment |
add a comment |
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Why do you use
foreach
andSELECT 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