Member Avatar for jbutardo

I have this error
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near
and I don't know how does this happen because whenever I check the SQL that I have made including the inserted data, it shows no error..

How does this happen..

Need Help..

Thanks

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Good that tracked down the bad query — and was right to push you toward examining how the SQL string is built. For anyone who lands here later with a similar MySQL syntax error, below is a compact troubleshooting checklist and a short, practical VB.NET pattern that reduces this class of bugs.

  • Reproduce the exact SQL the app sends. Log the final command text and each parameter value, then paste that SQL into a MySQL client to get the precise parser error location.
  • Watch concatenation: missing spaces when joining pieces (e.g., "...FROM table" & "WHERE...") produce merged tokens.
  • Unescaped quotes in data (names like O'Reilly) break string literals; prefer parameters instead of manual quoting.
  • Missing commas, extra/missing parentheses, or stray operators are common in long INSERT/UPDATE lists.
  • Reserved words (user, order, group, etc.) need backticks or different identifiers.
  • Use the parameter syntax your connector expects — Connector/NET supports named parameters like @name.
  • If you still see the error, reduce the query to a minimal form and add pieces back until the parser fails.

A safe VB.NET pattern (Connector/NET) and a tiny logging trick:

Using conn As New MySql.Data.MySqlClient.MySqlConnection(connString)
    conn.Open()
    Using cmd As New MySql.Data.MySqlClient.MySqlCommand( _
        "INSERT INTO `users` (`name`, `email`) VALUES (@name, @email)", conn)

        cmd.Parameters.AddWithValue("@name", userName)
        cmd.Parameters.AddWithValue("@email", userEmail)

        ' Debug output for troubleshooting:
        Debug.WriteLine("SQL: " & cmd.CommandText)
        For Each p As MySql.Data.MySqlClient.MySqlParameter In cmd.Parameters
            Debug.WriteLine(p.ParameterName & "=" & p.Value)
        Next

        cmd.ExecuteNonQuery()
    End Using
End Using

Final notes: logging the exact SQL+parameters makes it trivial to reproduce the parser error in the DB client. Switch to parameterized queries to avoid many syntax problems and to eliminate SQL injection risks.

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Member Avatar for hericles

Are you including variables in your string? Syntax errors are easy to get if you don't watch your spaces and accidentally concatenate some text together.
Of course, you haven't posted up your SQL query so we can't give you very accurate advice.

Member Avatar for jbutardo

Are you including variables in your string? Syntax errors are easy to get if you don't watch your spaces and accidentally concatenate some text together.
Of course, you haven't posted up your SQL query so we can't give you very accurate advice.

I have a wrong SQL query in the program, I have found it and now it works..

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