在 eclipse 的 toplink 中显示生成的 SQL

发布于 2024-10-03 18:51:26 字数 974 浏览 11 评论 0原文

我在 eclipse 中使用 EclipseLink 库（在开发时）并部署在 TopLink 上，我需要显示生成的 sql 语句。

我正在使用以下 persistence.xml：

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0"
    xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
    <persistence-unit name="myPUnit" transaction-type="JTA">
        <provider>
            oracle.toplink.essentials.PersistenceProvider
        </provider>
        <jta-data-source>jdbc/dcds</jta-data-source>
        <properties>
            <property name="toplink.cache.shared.default" value="false"/>
            <property name="toplink.logging.level" value="FINE" />
        </properties>
    </persistence-unit>
</persistence>

我知道它应该显示生成的 sql 语句，但事实并非如此。

原文

I am using EclipseLink libraries in eclipse (at dev time) and deploy on TopLink, I need to show the generated sql statement.

I am using the following persistence.xml:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0"
    xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
    <persistence-unit name="myPUnit" transaction-type="JTA">
        <provider>
            oracle.toplink.essentials.PersistenceProvider
        </provider>
        <jta-data-source>jdbc/dcds</jta-data-source>
        <properties>
            <property name="toplink.cache.shared.default" value="false"/>
            <property name="toplink.logging.level" value="FINE" />
        </properties>
    </persistence-unit>
</persistence>

I know it should show generated sql statements, but this is not the case.

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白色秋天 2024-10-10 18:51:26

要查看 JPA 查询的 SQL，您可以启用 FINE 或更低级别的日志记录。

要在运行时获取特定查询的 SQL，您可以使用 DatabaseQuery API。

Session session = em.unwrap(JpaEntityManager).getActiveSession(); 
DatabaseQuery    databaseQuery = ((EJBQueryImpl)query).getDatabaseQuery(); 
databaseQuery.prepareCall(session, new DatabaseRecord()); 
String sqlString = databaseQuery.getSQLString();

该 SQL 将包含 ?对于参数。要使用参数翻译 SQL，您需要一个包含参数值的 DatabaseRecord。

Session session = em.unwrap(JpaEntityManager).getActiveSession();
DatabaseQuery databaseQuery = ((EJBQueryImpl)query).getDatabaseQuery();
String sqlString = databaseQuery.getTranslatedSQLString(session, recordWithValues);

来源：如何获取查询的 SQL

To see the SQL for a JPA Query you can enable logging on FINE or lower.

To get the SQL for a specific Query at runtime you can use the DatabaseQuery API.

Session session = em.unwrap(JpaEntityManager).getActiveSession(); 
DatabaseQuery    databaseQuery = ((EJBQueryImpl)query).getDatabaseQuery(); 
databaseQuery.prepareCall(session, new DatabaseRecord()); 
String sqlString = databaseQuery.getSQLString();

This SQL will contain ? for parameters. To get the SQL translated with the arguments you need a DatabaseRecord with the parameter values.

Session session = em.unwrap(JpaEntityManager).getActiveSession();
DatabaseQuery databaseQuery = ((EJBQueryImpl)query).getDatabaseQuery();
String sqlString = databaseQuery.getTranslatedSQLString(session, recordWithValues);

Source: How to get the SQL for a Query

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