java

Question

我有一个存储函数设置如下：

CREATE OR REPLACE PACKAGE PACKAGENAME IS
FUNCTION READ_FUNC(i_name IN VARCHAR2)
    RETURN SYS_REFCURSOR;
END PACKAGENAME;
/
CREATE OR REPLACE PACKAGE BODY PACKAGENAME AS
FUNCTION
READ_FUNC(i_name IN VARCHAR2)
RETURN SYS_REFCURSOR
IS
    cursor SYS_REFCURSOR;
BEGIN
    //do stuff
    RETURN cursor;
END READ_FUNC;

我正尝试按如下方式在 Java 中调用它，但我得到 not a valid function or procedure name

try(CallableStatement stmt = conn.prepareCall("call PACKAGENAME.READ_FUNC(?)")
{
    stmt.setString(1, name);
    ResultSet result = stmt.executeQuery();
    // do stuff with result
}

它肯定存在，因为我可以desc PACKAGENAME而且它有我的功能。我还能够调用其他程序。有谁知道我做错了什么吗？

Answer 1

尝试以下操作：

CallableStatement stmt = conn.prepareCall("{ ? = call PACKAGENAME.READ_FUNC(?) }");
stmt.registerOutParameter(1, OracleTypes.CURSOR);
stmt.setString(2, name);

java - 调用 Returns 游标的存储函数

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sql

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stored-functions