How to add more filter to SQL

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I have this filter and that is working perfect but I need also to add more filters like this
And kod Like '" & txttrfirma.Text & "%' order by datumdos,grupa,proizvod,firma"

how to do that?

What I have tried:

sql1 = "SELECT * FROM tblpromet WHERE datumdos BETWEEN ? AND ? "
da1 = New OleDb.OleDbDataAdapter(sql1, con)
da1.SelectCommand.Parameters.AddWithValue(" min", DateTimePicker1.Value)
da1.SelectCommand.Parameters.AddWithValue(" max", DateTimePicker2.Value)
da1.Fill(ds, " PrometBase" )

Posted 2-Sep-19 11:59am

Member 12332478

Updated 13-Sep-19 0:59am

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Comments

ZurdoDev 3-Sep-19 15:14pm

1. Don't concatenate your control values into your sql statement because you expose your db to be hacked.
2. What db is this? Is it Mysql?
3. Just add " AND " and then the other condition to what you already have. What is the problem?

MarkTJohnson 4-Sep-19 11:03am

The question marks are the placeholders for the two Parameters.AddWithValue calls. They get done in sequential order. Oh, my bad, you weren't asking what the question marks were, you were asking questions.

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Maciej Los · Answer 1 · 2019-09-13T01:00:00

Quote:
I need also to add more filters like this
And kod Like '" & txttrfirma.Text & "%' order by datumdos,grupa,proizvod,firma"

All you need to do is to add another parameter

VB

sql1 = "SELECT * FROM tblpromet WHERE (datumdos BETWEEN ? AND ? ) AND (kod Like ?%);"
da1 = New OleDb.OleDbDataAdapter(sql1, con)
da1.SelectCommand.Parameters.AddWithValue(" min", DateTimePicker1.Value)
da1.SelectCommand.Parameters.AddWithValue(" max", DateTimePicker2.Value)
da1.SelectCommand.Parameters.AddWithValue(" kod", txttrfirma.Text)
da1.Fill(ds, " PrometBase" )

Note, that you can't add sort order through the parameters. You need to define order in your command:

VB

sql1 = "SELECT * FROM tblpromet WHERE (datumdos BETWEEN ? AND ? ) AND (kod Like ?%) ORDER BY  datumdos, grupa, proizvod, firma;"