我想使用JSQLParser将插入 sql 语句转换为删除 sql 语句,如何实现?例如这里是示例插入 sql
INSERT INTO emp (empno, ename, job, sal, comm, deptno, joinedon) VALUES (4160, 'STURDEVIN', 'SECURITY GUARD', 2045, NULL, 30, TO_TIMESTAMP('2014-07-02 06:14:00.742000000', 'YYYY-MM-DD HH24:MI:SS.FF'));
转换后删除 sql 将如下
DELETE FROM emp WHERE empno=4160 AND ename='STURDEVIN' AND job='SECURITY GUARD' AND sal=2045 AND comm=NULL AND deptno=30 AND joinedon=TO_TIMESTAMP('2014-07-02 06:14:00.742000000', 'YYYY-MM-DD HH24:MI:SS.FF');
这是到目前为止的代码
import net.sf.jsqlparser.JSQLParserException;
import net.sf.jsqlparser.expression.operators.relational.ItemsList;
import net.sf.jsqlparser.parser.CCJSqlParserUtil;
import net.sf.jsqlparser.schema.Column;
import net.sf.jsqlparser.statement.Statement;
import net.sf.jsqlparser.statement.delete.Delete;
import net.sf.jsqlparser.statement.insert.Insert;
import java.util.List;
public class Main {
public static void main(String[] args) {
String insertSQL = "INSERT INTO emp (empno, ename, job, sal, comm, deptno, joinedon) VALUES (4160, 'STURDEVIN', 'SECURITY GUARD', 2045, NULL, 30, TO_TIMESTAMP('2014-07-02 06:14:00.742000000', 'YYYY-MM-DD HH24:MI:SS.FF'));";
final Statement statement;
try {
statement = CCJSqlParserUtil.parse(insertSQL);
if (statement instanceof Insert) {
final Insert insertStatement = (Insert) statement;
System.out.println("insertStatement: " + insertStatement);
List<Column> columns = insertStatement.getColumns();
for (final Column column : columns) {
System.out.println("column: " + column);
}
ItemsList itemsList = insertStatement.getItemsList();
System.out.println("itemsList: " + itemsList);
final Delete deleteStatement = new Delete();
deleteStatement.setTable(insertStatement.getTable());
System.out.println("deleteStatement: " + deleteStatement);
}
} catch (JSQLParserException e) {
e.printStackTrace();
}
}
}
我正在使用 maven 构建这个项目,这里是 pom 依赖项。
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>oracle.insert.delete.jsqlparser</groupId>
<artifactId>oracle_from_insert_to_delete_using_JSqlParser</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.github.jsqlparser</groupId>
<artifactId>jsqlparser</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
</project>
部分遗留代码,这些插入语句是为设置测试数据而编写的,我想在测试完成后自动清理测试数据。并且不依赖于拆解中写得不好的删除语句。