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error in this code

Scheduled Pinned Locked Moved Visual Basic
databasehelpquestion
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  • M magedhv

    syntex error do u have another solution i have already use this code in another form and it works well (in my first topic ) i don't know what's wrong

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    magedhv
    wrote on last edited by
    #9

    he gives me error when i tried to enter 2 values this is the error syntax error (missing operator) in query expression '7/2/2007Vodafone'.

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    • C ChandraRam

      magedhv wrote:

      here what i wrote s = "insert into addcard" s = s & " (dte,op,nos,cost,coms,nii,npp )values " s = s & "(" & f1 & "," & f2 & "," & f3 & "," & f4 & "," & "," & f5 & "," & "," & f6 & "," & "," & f7 & "," & f8 & "')"

      Is this an exact copy from your code? If so, there is an extra ' at the end. Also, what is the type of field dte in your database? If it is a date, you cannot pass in a string, AFAIK. What is the error message you get, anyway?

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      magedhv
      wrote on last edited by
      #10

      he gives me this error msg Syntax error in INSERT INTO statement. all of the fields in database are number except dte it's type (date/time) plz help me cause it drive me crazy

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      • M magedhv

        he gives me this error msg Syntax error in INSERT INTO statement. all of the fields in database are number except dte it's type (date/time) plz help me cause it drive me crazy

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        ChandraRam
        wrote on last edited by
        #11

        magedhv wrote:

        Syntax error in INSERT INTO statement. all of the fields in database are number except dte it's type (date/time)

        Ok - but did you check out the suggestions I made earlier? Date fields cannot be passed in as strings to Jet databases.

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        • M magedhv

          he gives me error when i tried to enter 2 values this is the error syntax error (missing operator) in query expression '7/2/2007Vodafone'.

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          ChandraRam
          wrote on last edited by
          #12

          magedhv wrote:

          syntax error (missing operator) in query expression '7/2/2007Vodafone'

          It looks like you dont have the two fields separated - shouldnt it be '7/2/2007','Vodafone'... Also, the first is a date field, IIRC date fields for Jet databases should be enclosed by # not quotes.

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          • C ChandraRam

            magedhv wrote:

            syntax error (missing operator) in query expression '7/2/2007Vodafone'

            It looks like you dont have the two fields separated - shouldnt it be '7/2/2007','Vodafone'... Also, the first is a date field, IIRC date fields for Jet databases should be enclosed by # not quotes.

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            magedhv
            wrote on last edited by
            #13

            plz write 4 me the code of the date to try thanks i appreciate your efforts

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            • M magedhv

              plz write 4 me the code of the date to try thanks i appreciate your efforts

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              ChandraRam
              wrote on last edited by
              #14

              Just remember this... for text (string) variables, enclose data in quotes - like 'Vodafone' for number variables, just the value will do for date variables, enclose data with # - like #7/2/2007# and between each field, you should have a comma. Hope this helps.

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              • C ChandraRam

                Just remember this... for text (string) variables, enclose data in quotes - like 'Vodafone' for number variables, just the value will do for date variables, enclose data with # - like #7/2/2007# and between each field, you should have a comma. Hope this helps.

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                magedhv
                wrote on last edited by
                #15

                do u mean like that dim x as string x = "'" # DateTimePicker1.Value # "'" if that's what u mean the visual basic underline the last line (x = "'" # DateTimePicker1.Value # "'" ) plz try to write the whole code and note that the same code i use it with the same string in other form and it worked well

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                • M magedhv

                  do u mean like that dim x as string x = "'" # DateTimePicker1.Value # "'" if that's what u mean the visual basic underline the last line (x = "'" # DateTimePicker1.Value # "'" ) plz try to write the whole code and note that the same code i use it with the same string in other form and it worked well

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                  ChandraRam
                  wrote on last edited by
                  #16

                  magedhv wrote:

                  x = "'" # DateTimePicker1.Value # "'"

                  Thats not what I mean... try this: x = "#" & DateTimePicker1.Value & "#"

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                  • M magedhv

                    he tell me there is an error on the insert statement and iam sure from the names of the feilds coz i copy it from database so what's wrong??? i don't know where is the error plz anyone answer me thanks cmd.Connection.Close() If cn.State = ConnectionState.Closed Then If cn.State = ConnectionState.Closed Then cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=ehab.mdb" cn.Open() End If cmd.Connection = cn cmd.CommandType = CommandType.Text End If Dim s As String Dim h As Integer s = 0 h = 0 Dim f1, f2, f3, f4, f5, f6, f7, f8 As String f1 = "'" & DateTimePicker1.Value & "'," f2 = "'" & ComboBox1.Text & "'," f3 = "'" & ComboBox2.Text & "'," f4 = "'" & TextBox1.Text & "'," f5 = "'" & TextBox2.Text & "'," f6 = "'" & TextBox3.Text & "'," f7 = "'" & TextBox4.Text & "'," f8 = "'" & Label10.Text & "'" s = "insert into sale " s = s & " (dte,op,value,nos,cost,coms,nii,npp )values " s = s & "(" & f1 & f2 & f3 & f4 & f5 & f6 & f7 & f8 & ")" cmd.CommandText = s h = cmd.ExecuteNonQuery() MsgBox("Saved succssefuly")

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                    Dave Kreskowiak
                    wrote on last edited by
                    #17

                    Ignore ALL the other replies you've gotten in this thread. They're all crap. Drop all this string concatenation garbage and do it the correct way with a parameterized query. See this article[^] by Colin Angus Mackay for more information as to what they are and why your shooting yourself in the foot doing it your way. You're actaully making is harder on yourself by building a string for your parameters.

                    A guide to posting questions on CodeProject[^]
                    Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
                         2006, 2007

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                    • D Dave Kreskowiak

                      Ignore ALL the other replies you've gotten in this thread. They're all crap. Drop all this string concatenation garbage and do it the correct way with a parameterized query. See this article[^] by Colin Angus Mackay for more information as to what they are and why your shooting yourself in the foot doing it your way. You're actaully making is harder on yourself by building a string for your parameters.

                      A guide to posting questions on CodeProject[^]
                      Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
                           2006, 2007

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                      magedhv
                      wrote on last edited by
                      #18

                      could u plz tell me what should i do because i read this topic but i didn't understand what to do so if u have any idea about what to do simply tell me and thanks i appreciate ur efforts

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                      • M magedhv

                        could u plz tell me what should i do because i read this topic but i didn't understand what to do so if u have any idea about what to do simply tell me and thanks i appreciate ur efforts

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                        Dave Kreskowiak
                        wrote on last edited by
                        #19

                        I did "simply" tell you. You're building an SQL query by appending multiple strings together. This introduces the opportunity for a lot of bugs and security holes into your code. Read the article I gave you a link for and about half way down, it'll explain what a parameterized query is and how to put it together to solve most of your security and readability problems.

                        A guide to posting questions on CodeProject[^]
                        Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
                             2006, 2007

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