我在 PL/SQL 包中定义了记录类型和过程(作为 IN 参数接收记录表)如何在 Java 代码中调用此过程?
避免这种类型的 IN 参数会更好吗?也许是参考光标?
通常的做法是使用临时表。
0 必要时关闭自动提交(默认关闭)
1 用一些值填充一个临时表。
2 调用您的程序。从临时表中读取值。(IN参数中没有记录)
3 提交
//A function to put a value in temporary table
public void addValueToTmp(Connection conn, String value) throws NamingException, SQLException {
CallableStatement cs = conn.prepareCall("{call plsql_function_put_value_in_tmp(?)}");
....... other code .......
....... other code .......
....... other code .......
}
//A function to do something whit a data in temporary table
public void doAllWork(Connection conn) throws NamingException, SQLException {
CallableStatement cs = conn.prepareCall("{call plsql_function_do_something_whith_tmp}");
....... other code .......
....... other code .......
....... other code .......
}
public void mainFunction() throws NamingException, SQLException {
....... other code .......
//Get connection
Connection conn = anyFunctionToGetConnection();
//Fill temporary table
addValueToTmp(conn, value1);
addValueToTmp(conn, value2);
addValueToTmp(conn, value3);
//Do something whith data
doAllWork(conn);
//Commit
conn.commit;
....... other code .......
}