[英]Spring boot data.sql does not initialize data in Postgresql
[英]Wrong SQL statements syntax in file data.sql in Spring Boot nad PostgreSQL
我想创建一个将由PostgreSQL数据库创建的条件查询
IF ( NO EXISTS(SELECT * FROM users WHERE username = 'JonkiPro'))
BEGIN
INSERT INTO UserEntity(id, username, email, password, enabled, registration_date, modified_date)
VALUES(1, 'JonkiPro', 'someemail@someemail.com,', 'safsd', true, GetDate(), GetDate())
END
但是,编译期间发生错误
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceInitializer': Invocation of init method failed; nested exception is org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of class path resource [db/init/data.sql]: IF ( NO EXISTS(SELECT * FROM users WHERE username = 'JonkiPro')); nested exception is org.postgresql.util.PSQLException: BŁĄD: błąd składni w lub blisko "IF"
Pozycja: 1
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:137) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
...
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1633) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
... 99 common frames omitted
Caused by: org.springframework.jdbc.datasource.init.ScriptStatementFailedException: Failed to execute SQL script statement #1 of class path resource [db/init/data.sql]: IF ( NO EXISTS(SELECT * FROM users WHERE username = 'JonkiPro')); nested exception is org.postgresql.util.PSQLException: BŁĄD: błąd składni w lub blisko "IF"
Pozycja: 1
at ...
... 114 common frames omitted
Caused by: org.postgresql.util.PSQLException: ERROR: syntax error in or near "IF".
Pozycja: 1
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2455) ~[postgresql-9.4.1212.jre7.jar:9.4.1212.jre7]
at ...
我不知道他为什么不理解IF
的顺序。 但是,当我在DO $$ ... $$
之间接受命令时,它将拒绝异常
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceInitializer': Invocation of init method failed; nested exception is org.springframework.jdbc.datasource.init.UncategorizedScriptException: Failed to execute database script from resource [class path resource [db/init/data.sql]]; nested exception is java.lang.ArrayIndexOutOfBoundsException
...
... 99 common frames omitted
Caused by: org.springframework.jdbc.datasource.init.UncategorizedScriptException: Failed to execute database script from resource [class path resource [db/init/data.sql]]; nested exception is java.lang.ArrayIndexOutOfBoundsException
...
org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:470) ~[spring-jdbc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
... 127 common frames omitted
我的第二个问题是如何添加命令以将数据输入到块BEGIN ... END
中的另一个表中
有关有条件创建用户的另一种方法,请参见此问题 ,因为您似乎必须先加载PL / pgSQL扩展才能使用IF语句。 在您的情况下,这将导致如下查询:
INSERT INTO UserEntity(id, username, email, password, enabled, registration_date, modified_date)
SELECT
1, 'JonkiPro', 'someemail@someemail.com,', 'safsd', true, GetDate(), GetDate()
WHERE NOT EXISTS (
SELECT * FROM users WHERE username = 'JonkiPro'
);
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