The Excel XLOOKUP function is a modern and flexible replacement for older functions like VLOOKUP, HLOOKUP, and LOOKUP. XLOOKUP supports approximate and exact matching, wildcards (.?) for partial matches, and lookups in vertical or horizontal ranges. In MS Access application DLookup function is used to get the value of a particular field from a specified set of records (a domain). You can use this DLookup function in Visual Basic for Applications (VBA) module, a query expression, a macro, or a calculated control on a form or report.

1. Excel Vlookup 複数条件
2. Lookup Excel Function
3. Dlookup Examples
4. How To Do Vlookup In Excel
5. Excel Function Reference
6. Lookup Excel Multiple Criteria

Use DLookup() Function in MS Access

Use LOOKUP, one of the lookup and reference functions, when you need to look in a single row or column and find a value from the same position in a second row or column. For example, let's say you know the part number for an auto part, but you don't know the price. A VLOOKUP is an Excel-function that looks for something in a range of cells. Then it returns that something that’s in the same row as the value you’re looking for. The only caveat is, that the datasheet has to be listed vertically (which is the case 99% of the time). Now you know what a VLOOKUP is. MS Excel: How to use the LOOKUP Function (WS) Description. The Microsoft Excel LOOKUP function returns a value from a range (one row or one column) or from an array. LOOKUP Function (Syntax #1). In Syntax #1, the LOOKUP function searches for value in the lookuprange and returns the.

DLookup function is a built-in function to get the value of a particular field from the set of records or data from table, query, SQL, or Recordset. The result of DLookup function will be the particular field of the first record.

DLookup Syntax

DLookup(Expression, Domain, Criteria [optional])

• Expression identifies the field whose value you want to return. It can be a string expression identifying a filed in a table or query.
• Domain is a set of records. It can be a table name or a query name for a query does not require a parameter.
• Criteria is an optional expression to restrict the range of data. Criteria is equivalent to the WHERE clause in an SQL Expression, but without the word WHERE. Any field that is included in Criteria must also be a field in Domain.

Excel Vlookup 複数条件

Example of Using DLookup() Function

#1 DLookup without Criteria

It is the simplest form of DLookup() function. Without specifying any criteria per code below, DLookup function will return the value of the first record in the CustomerName field from tbl_Customer table. The result will be “Barney Rubble” since it is the first record on tbl_Customer table as shown in the picture below.

Code:

#2 DLookup on Empty Data Record

Sometime we don’t know if the table or query has a record. When we use the DLookup() function on the empty table we will get the error message shown below. It says “Invalid Use of Null” because we attempt to assign a Null value to the variable strX.

Code:

To prevent getting the error message above, we can use IF Statement to test if there is a record found before assigning the result value to the variable strX.

Correct Code:

#3 DLookup with Textual Criteria

The code “[UserLoginID] = ‘John’” is used as the Criteria for the DLookup function below. When we use the equal sign (=), only the record that has the entire User Name = “John” will be the result of this criteria. Per code below, the result will be “No Record Found” since there is no record that has the User Name “John”, but there are some records for “John Vang” or “John Smith.”

Lookup Excel Function

Code:

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#4 DLookup with Textual Criteria that comes from a Field on Current Form

Per code below, the code “[UserLoginID] = ‘” & Me.txtLoginID & “‘” is used as the Criteria for the DLookup function. For this example, we want to get (or look up) the User Name for the entered UserLoginID on text box UserLoginID on this form then display it on the text box User Name.

Dlookup Examples

If jvang is entered on text box UserLoginID, the User Name should be “John Vang”as shown in the picture below. Two IF Statements are used for this code to check if the UserLoginID is entered and to prevent the error if the User Name is empty for the entered UserLoginID.

Code:

#5 DLookup with Numeric Criteria

The code “[UserID] = 6” is used as the numeric Criteria for the DLookup function below. Per code below, the result will be “Adam Smith” since the UserID 6 is for the User Name “Adam Smith.”

Code:

#6 DLookup with a Numeric Criteria that comes from the field on current Form

The code “[UserID] = Me.txtUserID” is used as the numeric Criteria for the DLookup function below. Per code below, the result will be “John Vang” since the UserID 3 is for the User Name “John Vang” per the tblUser table above.

Code:

How To Do Vlookup In Excel

#7 DLookup Query with Date Criteria

Excel Function Reference

Lookup Excel Multiple Criteria

The DLookup function can be used to look up information on query as example below. The code “[FinishDate] = #4/30/2014#” is used as the date Criteria for the DLookup function below. Per code below, the result will be “Task 5″ since the “Task 5” has a finish date 4/30/2014 per the query “task completed” below.

Code: