Question

我遇到了带有＆amp; -sign前缀参数的 PL / SQL 函数/过程调用，例如m_package.DeleteDuplicates(&param1, &parma2)。有谁能告诉我这是什么＆amp;前缀暗示。

Answer 1

您好“＆amp;”意味着它会要求用户输入输入参数函数的过程。希望在片段下面帮助

_createMenu = () => {
    let menuOptionsAndIcons = {
            'About me': <i className="fa fa-male" style={style.icons}/>,
            'Skills': <i className="fa fa-certificate" style={style.icons}/>,
            'Music': <i className="fa fa-music" style={style.icons}/>,
            'Interests': <i className="fa fa-cogs" style={style.icons}/>
        },
        menu = [];

    function _routeHandler() {
        switch (this) {
            case 'About me':
                return function () {
                    if (typeof window !== 'undefined')
                        window.location.href = '' + 'http://' + window.location.host + '/about_me';
                };
                break;
            case 'Skills':
                return function () {
                    if (typeof window !== 'undefined')
                        window.location.href = '' + 'http://' + window.location.host + '/skills';
                };
                break;
            case 'Music':
                return function () {
                    if (typeof window !== 'undefined')
                        window.location.href = '' + 'http://' + window.location.host + '/music';
                };
                break;
            case 'Interests':
                return function () {
                    if (typeof window !== 'undefined')
                        window.location.href = '' + 'http://' + window.location.host + '/interests';
                };
                break;
            default:
                break;
        }
    }

    for (var prop in menuOptionsAndIcons) {
        if (menuOptionsAndIcons.hasOwnProperty(prop)) {
            menu.push(<MenuItem leftIcon={menuOptionsAndIcons[prop]}
                                primaryText={ prop }
                                style={style.menuItem}
                                onTouchTap={_routeHandler.call(prop)}
                                key={prop}
                                rippleColor={"#FFFAE8"}
                                className="animated fadeInLeft"/>)
         }
     }

    return menu
};

执行时会提示用户输入参数值

Example

CREATE OR REPLACE PROCEDURE proc_av1(
    param1 IN NUMBER)
AS
BEGIN
  dbms_output.put_line(param1);
END;

使用＆amp; -sign前缀参数调用oracle PL / SQL函数/过程

1 个答案: