当我在Java中执行statement.executeBatch()方法时,它返回一个值为2的int数组
关于批处理更新的返回码,jdbc-spec有以下说法:
■0或更大
■声明。SUCCESS_NO_INFO
■-2
但是我每次都得到2。
记录已成功从数据库中删除,并且从两个满足查询条件的表中删除了25条记录。但是在sysout中,它将受影响的Records值显示为2
Connection conn = null;
Statement stmt = null;
try {
Class.forName(JDBC_DRIVER);
conn = DriverManager.getConnection(CONNECTION_URL, USERNAME, PASSWORD);
stmt = conn.createStatement();
System.out.println("trying to execute query");
stmt.addBatch("DELETE FROM TABLE1 WHERE CRTE_TSTP < TRUNC(SYSDATE) - 14");
stmt.addBatch("DELETE FROM TABLE2 WHERE RECV_TSTP < TRUNC(SYSDATE) - 14");
int affectedRecords[] = stmt.executeBatch();
conn.commit();
System.out.println("number of rows deleted " + affectedRecords.length);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
最佳答案
您得到的是数组的长度,而不是实际的int值。您是否尝试过计算返回数组的元素的删除总和。例如:
int affectedRecordsSum = affectedRecords[0] + affectedRecords[1];
System.out.println("number of rows deleted " + affectedRecordsSum);