Question

从未见过这样的错误：

错误[22P02]错误：整数的输入语法无效：“”;执行查询时出错

创建表格：

    Public Function PrimkCreate(ByVal myPrimkTable As String, ByVal nCon As OdbcConnection) As Integer
    Dim ans As Integer
    Dim cCommand As OdbcCommand = New OdbcCommand("CREATE TABLE IF NOT EXISTS " + myPrimkTable + "(" & _
            "prm_id int NOT NULL, " & _
            "pkni text, " & _
            "pdatum text, " & _
            "pdatumnaplate text, " & _
            "pdanaodgode int, " & _
            "puldok text, " & _
            "puldokbroj text, " & _
            "pdatumk text, " & _
            "pvrijemek text, " & _
            "pdobid int, " & _
            "pdoboib text, " & _
            "pnabc double precision, " & _
            "purab double precision, " & _
            "ppdv double precision, " & _
            "ppnak double precision, " & _
            "pprodc double precision, " & _
            "pvrstaprimke int, " & _
            "pzapisniktekst text, " & _
            "prez text, " & _
            "CONSTRAINT " & myPrimkTable & "_pkey PRIMARY KEY(prm_id))", nCon)

    ans = cCommand.ExecuteNonQuery()
    cCommand.Dispose()
    Return ans
End Function

更新代码：

    Public Function update_LPrimk(ByRef primk As Integer, ByVal mCon As OdbcConnection) As Integer

    Dim retval As Integer
    Dim uCmd As OdbcCommand = New OdbcCommand("UPDATE " & myPrimkTable & " SET " & _
                "prm_id=" & primk & ", " & _
                "pkni='" & prm.pKni & "', " & _
                "pdatum='" & prm.pDatum & "', " & _
                "pdatumnaplate='" & prm.pDatumNaplate & "', " & _
                "pdanaodgode=" & prm.pDanaodgode & ", " & _
                "puldok='" & prm.pUlDok & "', " & _
                "puldokbroj='" & prm.pUlDokBroj & "', " & _
                "pdatumk='" & prm.pDatumk & "', " & _
                "pvrijemek='" & prm.pVrijemek & "', " & _
                "pdobid='" & prm.pDobID & "', " & _
                "pdoboib='" & prm.pDobOib & "', " & _
                "pnabc='" & Replace(prm.pNabc.ToString, ",", ".") & "', " & _
                "purab='" & Replace(prm.pURab.ToString, ",", ".") & "', " & _
                "ppdv='" & Replace(prm.pPdv.ToString, ",", ".") & "', " & _
                "ppnak='" & Replace(prm.pPnak.ToString, ",", ".") & "', " & _
                "pprodc='" & Replace(prm.pProdc.ToString, ",", ".") & "', " & _
                "pvrstaprimke=" & prm.pVrstaPrimke & ", " & _
                "pzapisniktekst='" & prm.pZapisnikTekst & "', " & _
                "prez='" & prm.pRez & "' " & _
                "WHERE prm_id=" + primk.ToString, mCon)

    retval = uCmd.ExecuteNonQuery()
    uCmd.Dispose()
    Return retval
End Function

查询看起来完全像这样：

UPDATE primke SET prm_id=1, pkni='U', pdatum='07.01.2013', pdatumnaplate='10.01.2013',
pdanaodgode=3, puldok='ghkzug gugug', puldokbroj='jkhk', pdatumk='', pvrijemek='', 
pdobid='', pdoboib='', pnabc='0', purab='0', ppdv='0', ppnak='0', pprodc='0', 
pvrstaprimke=0, pzapisniktekst='', prez='' WHERE prm_id=1

我有很多表，我运行类似的命令，但从未见过这样的错误可能是什么问题？

Answer 1

我建议阅读Constants in the manual一章。这是一篇简短而翔实的读物错误消息的原因是''是空字符串，在integer等数字类型中没有任何表示。

@a_horse_with_no_name：准确地说，'0'是PostgreSQL的字符串常量，可以强制转换为integer，并且可以强制转换为{{1}只有text是字符串常量的默认值。考虑一下这个演示：

text

SQL Fiddle.

错误[22P02]错误：整数的输入语法无效：“”;

1 个答案: