Home/ Questions/Q 8284203
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-08T11:01:05+00:00

Dynamically create table and insert data into the created table, I’m using following command

  • 0

Dynamically create table and insert data into the created table, I’m using following command to create a table dynamically and insert the values. I’m commented the sample value for the variable respectively. 

Dim question, opt1, opt2, opt3, opt4, ans, paper As String
          question = Request.QueryString("question") '<p>This is my first question</p>
          opt1 = Request.QueryString("option1") ' option 1
          opt2 = Request.QueryString("option2") ' option 2
          opt3 = Request.QueryString("option3") ' option 3
          opt4 = Request.QueryString("option4") ' option 4
          ans = Request.QueryString("answer")    ' 2
          paper = Request.QueryString("paper")  ' cs-5-cder-2012
          'Response.Write("....")
          Dim cs As String = ConfigurationManager.ConnectionStrings("eExamSolutionConnection").ConnectionString
          Dim cn As New SqlConnection(cs)
      Dim cmd As New SqlCommand

      Dim cmdText As String
      cmdText = "IF EXISTS (SELECT * FROM   INFORMATION_SCHEMA.TABLES  WHERE  TABLE_SCHEMA = 'RAVI' AND TABLE_NAME = '" & paper & "') "
      cmdText = cmdText & " BEGIN"
      cmdText = cmdText & " INSERT INTO " & paper & "(question,option1,option2,option3,option4,answer) VALUES('" & question & "','" & opt1 & "','" & opt2 & "','" & opt3 & "','" & opt4 & "','" & ans & "');"
      cmdText = cmdText & " END"
      cmdText = cmdText & " ELSE"
      cmdText = cmdText & " BEGIN"
      cmdText = cmdText & " CREATE TABLE " & paper & "(question_Id int AUTO_INCREMENT,question varchar(MAX),option1 varchar(255),option2 varchar(255),option3 varchar(255),option4 varchar(255),answer varchar(2));"
      cmdText = cmdText & " INSERT INTO " & paper & "(question,option1,option2,option3,option4,answer) VALUES('" & question & "','" & opt1 & "','" & opt2 & "','" & opt3 & "','" & opt4 & "','" & ans & "');"
      cmdText = cmdText & " END"
      Try
          cmd.CommandText = cmdText.ToString
          cmd.Connection = cn
          cmd.Connection.Open()
          cmd.ExecuteNonQuery()
          cmd.Connection.Close()
          cmd.Dispose()
          cn.Dispose()
          Response.Write("Question Added !!")
      Catch ex As Exception
          Response.Write(ex.ToString)
      End Try

But, I’m getting exception

System.Data.SqlClient.SqlException: Incorrect syntax near ‘-‘. Incorrect syntax near ‘-‘. Incorrect syntax near ‘-‘.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception,
Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj)
at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String
methodName, Boolean async)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult
result, String methodName, Boolean sendToPipe)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at ASP.admin_addquestion_aspx._Render_control1(HtmlTextWriter __w,
Control parameterContainer) in
D:\EWA\eExam\admin\addQuestion.aspx:line 40

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Please use 

        Dim cmdText As String
    cmdText = "IF EXISTS (SELECT * FROM   INFORMATION_SCHEMA.TABLES  WHERE  TABLE_SCHEMA = 'RAVI' AND TABLE_NAME = '" & paper & "') "
    cmdText = cmdText & " BEGIN"
    cmdText = cmdText & " INSERT INTO [" & paper & "](question,option1,option2,option3,option4,answer) VALUES('" & question & "','" & opt1 & "','" & opt2 & "','" & opt3 & "','" & opt4 & "','" & ans & "');"
    cmdText = cmdText & " END"
    cmdText = cmdText & " ELSE"
    cmdText = cmdText & " BEGIN"
    cmdText = cmdText & " CREATE TABLE [" & paper & "](question_Id int IDENTITY(1,1),question varchar(MAX),option1 varchar(255),option2 varchar(255),option3 varchar(255),option4 varchar(255),answer varchar(2));"
    cmdText = cmdText & " INSERT INTO [" & paper & "](question,option1,option2,option3,option4,answer) VALUES('" & question & "','" & opt1 & "','" & opt2 & "','" & opt3 & "','" & opt4 & "','" & ans & "');"
    cmdText = cmdText & " END"

    Instead of

       Dim cmdText As String
  cmdText = "IF EXISTS (SELECT * FROM   INFORMATION_SCHEMA.TABLES  WHERE  TABLE_SCHEMA = 'RAVI' AND TABLE_NAME = '" & paper & "') "
  cmdText = cmdText & " BEGIN"
  cmdText = cmdText & " INSERT INTO " & paper & "(question,option1,option2,option3,option4,answer) VALUES('" & question & "','" & opt1 & "','" & opt2 & "','" & opt3 & "','" & opt4 & "','" & ans & "');"
  cmdText = cmdText & " END"
  cmdText = cmdText & " ELSE"
  cmdText = cmdText & " BEGIN"
  cmdText = cmdText & " CREATE TABLE " & paper & "(question_Id int AUTO_INCREMENT,question varchar(MAX),option1 varchar(255),option2 varchar(255),option3 varchar(255),option4 varchar(255),answer varchar(2));"
  cmdText = cmdText & " INSERT INTO " & paper & "(question,option1,option2,option3,option4,answer) VALUES('" & question & "','" & opt1 & "','" & opt2 & "','" & opt3 & "','" & opt4 & "','" & ans & "');"
  cmdText = cmdText & " END"

    Problem was:

    1 Table name should be[] at create and insert time.
    2 For autoincremnet there will be IDENTITY(1,1) in SQL server.

    • 0