query not filtering keywords

[jaaferalakkal]

I have query to display vendor numbers and vendor names as shown in the picture, when I leave the parameter prompt colum and I enter the next parameter prompt "Thailand" it displays all vendors. Please help

[warmslime]

I don't get it, why are you repeating the same field twice in the query? What is [enter keyword] and why do you have two parameters for the same field? Also I don't get what the "or" line means at all? Try expressing your criteria and your parameter(s) in plain words first.

[Micron]

I don't get it, why are you repeating the same field twice in the query?

Where do you see that? One field is named No_ and the other is Name (name is a reserved word and should not be a field or object name).

What is [enter keyword]

This makes it a parameter query - user will get a prompt.

and why do you have two parameters for the same field? Also I don't get what the "or" line means at all?

The second line is asking for all records where vendor is Null. However, the or is declared at the left side of the grid - you do not add it to the criteria.
Second, you don't use Like with Null or Is Null. Like is a comparison operator and there is nothing to compare if the field is Null. Like is for criteria with wild cards.

[jaaferalakkal]

Thank you for your reply. for further clarification, for eg: i have 4 vendors named 1) abcvendor 2) cdevendor 3) fgevendor 4) abcdvendor . when i click run button a prompt will ask [enter vendor no ] , if i leave blank another prompt will pop up to [enter keyword] then i will enter "abc" so it will display only a vendor with letter abc , the result must be vendor no 1 and 4, but in this scenario i am getting a result that showing all the 4 vendors which i have. Anyone please suggest appropriate query.

[Micron]

Try pasting this into a new query

SELECT [No_], [Name] FROM [dbo_Wear Mart Warehouse$Vendor] WHERE 
[dbo_Wear Mart Warehouse$Vendor].[No_] = [ENTER VENDOR NO] AND 
[dbo_Wear Mart Warehouse$Vendor].[Name] Like "'*" & [enter keyword] & "*'";

Note the single quotes within the double quotes. This assumes the first prompt expects a number and the second is text.