Question

我在postgresql 9.4中有以下插入函数。我完全无法用参数进行测试。

DROP FUNCTION "Public".cash_inserts(integer, bigint, timestamp without time zone, character varying, numeric, numeric);

CREATE OR REPLACE FUNCTION "Public".cash_inserts(
cashid integer,
cashserial bigint,
cashdate timestamp without time zone,
cashmemo text,
cashcredit numeric,
cashdebit numeric)
  RETURNS integer AS
$BODY$ 

INSERT INTO "Public"."CashAccounts"
VALUES
    (
        CashId,
        CashSerial,
        CashDate,
        CashMemo,
        CashCredit,
        CashDebit
    ) RETURNING CashId ; 

 $BODY$
  LANGUAGE sql VOLATILE
  COST 100;

ALTER FUNCTION "Public".cash_inserts(integer, bigint, timestamp without time zone, text, numeric, numeric)
  OWNER TO robert100;

因为字段'cashid，cashserial，cashdate'要么自动递增，要么由数据库创建，因此我没有输入任何值。但是，Cashmemo“不是NUll”和“Cashcredit，Cashdebit”可以是可空的或可选的。

Answer 1

为什么在函数插入语句中包含cashid，cashserial，cashdate，如果它们是either auto-incrementing or created by the database，如你所说，函数返回int？

也许试试：

DROP FUNCTION "Public".cash_inserts(integer, bigint, timestamp without time zone, character varying, numeric, numeric);
CREATE OR REPLACE FUNCTION "Public".cash_inserts(
cashmemo text,
cashcredit numeric,
cashdebit numeric)
  RETURNS integer AS
$BODY$ INSERT INTO "Public"."CashAccounts"
VALUES
    (
        CashMemo,
        CashCredit,
        CashDebit
    ) RETURNING CashId ; $BODY$
  LANGUAGE sql VOLATILE
  COST 100;
ALTER FUNCTION "Public".cash_inserts(text, numeric, numeric)
  OWNER TO robert100

然后用变量参数调用函数，数据库将自动生成cashid，cashserial和cashdate。

Answer 2

看来我原来的问题是正确的。我发现，当你提供参数时，它们必须都是这样的引号：

    SELECT "Public".cash_inserts(
    '10',
    '4',
    '12-12-12',
    'COOL',
    '200',
    '300'
);

插入函数Postgresql如何用参数测试？

2 个答案: