没有函数匹配给定的名称和参数类型

Question

我的功能是:

 CREATE OR REPLACE FUNCTION FnUpdateSalegtab09
(
 iacyrid Integer,iRepId Integer,iDrId Integer,ivrid Integer,imode smallint,itrno 
varchar,itrdate timestamp,iacid Integer,ivrno varchar,iSuppId Integer,icustname 
varchar,inetamt money,idisrate real,idisamt money,iRoundOff real,ijrmid integer,iuserid 
integer,iuserdtm timestamp,iVSNo integer,iRecdAmt money,icstrate real,icstsaleamt 
money,icstamt money,itdrate real,itdamt money,icdrate real,icdamt money,iCessRate 
real,iCessAmt money,iodesc1 varchar,ioamt1 money,iCashCredit boolean,iOrderNo 
varchar,iOrderDate timestamp,iCustAdd2 varchar,iRemarks varchar,iWhoRetSl boolean,iPatName 
varchar,iDrName varchar,iFormId integer,iSalesMan varchar,iCFMode smallint,iPatId 
integer,iStkPtId integer,iDisType smallint,iBranchID integer
)
RETURNS void AS
'BEGIN 
INSERT INTO gtab09 
(
acyrid, RepId, DrId, vrid, mode, trno, trdate, acid, vrno, SuppId, custname, netamt,
disrate, disamt, RoundOff, jrmid, userid, userdtm, VSNo, RecdAmt, cstrate, cstsaleamt,
cstamt, tdrate, tdamt, cdrate, cdamt, CessRate, CessAmt, odesc1, oamt1, CashCredit, 
OrderNo, OrderDate, CustAdd2, Remarks, WhoRetSl, PatName, DrName, FormId, SalesMan, 
CFMode,PatId,StkPtId,DisType,BranchID
)
values 
(   iacyrid,iRepId,iDrId,ivrid,imode,itrno,itrdate,iacid,ivrno,iSuppId,icustname,inetamt,idisra
te,idisamt,iRoundOff,ijrmid,iuserid,iuserdtm,iVSNo,iRecdAmt,icstrate,icstsaleamt,icstamt,it
drate,itdamt,icdrate,icdamt,iCessRate,iCessAmt,iodesc1,ioamt1,iCashCredit,iOrderNo,iOrderDa
te,iCustAdd2,iRemarks,iWhoRetSl,iPatName,iDrName,iFormId,iSalesMan,iCFMode,iPatId,iStkPtId,
iDisType,iBranchID);
END;'
LANGUAGE plpgsql VOLATILE
COST 100;

而我以前称之为:

select FnUpdateSalegtab09 (4, 1, 0, 12, 1, '9'::varchar,'2014-07-15'::timestamp, 4048, '9'::varchar, 4048, 'MYCUSTOMER'::varchar, 12::money, 0, 0::money, 0.32, 185, 0, '2014-07-15 11:24:12 AM'::timestamp, 0, 0::money, 0, 0::money, 0::money, 0, 0::money, 0, 0::money, 0, 0::money, ''::varchar, 0::money, False, ''::varchar, '2014-07-15'::timestamp, ''::varchar, ''::varchar, False, ''::varchar, ''::varchar, 1, ''::varchar, 1,0,1,0,42)

错误是:

ERROR:  function fnupdatesalegtab09(integer, integer, integer, integer, integer, unknown, unknown, integer, unknown, integer, unknown, integer, integer, integer, numeric, integer, integer, unknown, integer, integer, integer, integer, integer, integer, integer, integer, integer, integer, integer, unknown, integer, boolean, unknown, unknown, unknown, unknown, boolean, unknown, unknown, integer, unknown, integer, integer, integer, integer, integer) does not exist  
LINE 1: select FnUpdateSalegtab09 (4, 1, 0, 12, 1, '9','2014-07-15',...
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.  
********** Error **********

Answer 1

您的函数有几个smallint参数.
但是在调用中,您使用的是假定为类型的数字文字integer.

不立即键入字符串文字或字符串常量('123').在明确指定或转换之前,它仍为"未知"类型.

但是,会立即键入数字文字或数字常量.每个文件:

如果一个数值常量既不包含小数点也不包含指数,则最初假定它是一个类型,integer如果它的值适合类型integer(32位); 否则,bigint如果其值适合类型bigint(64位),则假定为类型 ; 否则它被认为是类型numeric.包含小数点和/或指数的常量最初始终假定为类型numeric.

此相关答案中有更多解释和链接:

• PostgreSQL错误:函数to_tsvector(字符变化,未知)不存在

解

为smallint参数添加显式强制转换或引用它们.

演示

CREATE OR REPLACE FUNCTION f_typetest(smallint)
  RETURNS bool AS 'SELECT TRUE' LANGUAGE sql;

通话不正确:

SELECT * FROM f_typetest(1);

正确的电话:

SELECT * FROM f_typetest('1');
SELECT * FROM f_typetest(smallint '1');
SELECT * FROM f_typetest(1::int2);
SELECT * FROM f_typetest('1'::int2);

SQL小提琴.

Answer 2

该错误意味着函数调用仅与现有函数匹配，前提是其所有参数都具有相同类型并以相同顺序传递。所以如果下一个f()函数

create function f() returns integer as $$ 
    select 1;
$$ language sql;

被称为

select f(1);

它会出错

ERROR:  function f(integer) does not exist
LINE 1: select f(1);
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

因为没有f()函数接受整数作为参数。

因此，您需要仔细比较传递给函数的内容与函数期望的内容。那长长的表列列表看起来设计很糟糕。