FROM clause (Microsoft Access SQL)

Applies to: Access 2013 | Access 2016

Specifies the tables or queries that contain the fields listed in the SELECT statement.

Syntax

SELECT fieldlist FROM tableexpression [IN externaldatabase ]

A SELECT statement containing a FROM clause has these parts:

Part Description
fieldlist The name of the field or fields to be retrieved along with any field-name aliases, SQL aggregate functions, selection predicates (ALL, DISTINCT, DISTINCTROW, or TOP), or other SELECT statement options.
tableexpression An expression that identifies one or more tables from which data is retrieved. The expression can be a single table name, a saved query name, or a compound resulting from an INNER JOIN, LEFT JOIN, or RIGHT JOIN.
externaldatabase The full path of an external database containing all the tables in tableexpression.

Remarks

FROM is required and follows any SELECT statement.

The order of the table names in tableexpression is not important.

For improved performance and ease of use, it is recommended that you use a linked table instead of an IN clause to retrieve data from an external database.

The following example shows how you can retrieve data from the Employees table:

SELECT LastName, FirstName 
FROM Employees;

Example

Some of the following examples assume the existence of a hypothetical Salary field in an Employees table. Note that this field does not actually exist in the Northwind database Employees table.

This example creates a dynaset-type Recordset based on an SQL statement that selects the LastName and FirstName fields of all records in the Employees table. It calls the EnumFields procedure, which prints the contents of a Recordset object to the Debug window.

Sub SelectX1() 
 
    Dim dbs As Database, rst As Recordset 
 
    ' Modify this line to include the path to Northwind 
    ' on your computer. 
    Set dbs = OpenDatabase("Northwind.mdb") 
 
    ' Select the last name and first name values of all  
    ' records in the Employees table. 
    Set rst = dbs.OpenRecordset("SELECT LastName, " _ 
        & "FirstName FROM Employees;") 
 
    ' Populate the recordset. 
    rst.MoveLast 
 
    ' Call EnumFields to print the contents of the 
    ' Recordset. 
    EnumFields rst,12 
 
    dbs.Close 
 
End Sub

This example counts the number of records that have an entry in the PostalCode field and names the returned field Tally.

Sub SelectX2() 
 
    Dim dbs As Database, rst As Recordset 
 
    ' Modify this line to include the path to Northwind 
    ' on your computer. 
    Set dbs = OpenDatabase("Northwind.mdb") 
 
    ' Count the number of records with a PostalCode  
    ' value and return the total in the Tally field. 
    Set rst = dbs.OpenRecordset("SELECT Count " _ 
        & "(PostalCode) AS Tally FROM Customers;") 
 
    ' Populate the Recordset. 
    rst.MoveLast 
 
    ' Call EnumFields to print the contents of  
    ' the Recordset. Specify field width = 12. 
    EnumFields rst, 12 
 
    dbs.Close 
 
End Sub

This example shows the number of employees and the average and maximum salaries.

Sub SelectX3() 
 
    Dim dbs As Database, rst As Recordset 
 
    ' Modify this line to include the path to Northwind 
    ' on your computer. 
    Set dbs = OpenDatabase("Northwind.mdb") 
 
    ' Count the number of employees, calculate the  
    ' average salary, and return the highest salary. 
    Set rst = dbs.OpenRecordset("SELECT Count (*) " _ 
        & "AS TotalEmployees, Avg(Salary) " _ 
        & "AS AverageSalary, Max(Salary) " _ 
        & "AS MaximumSalary FROM Employees;") 
 
    ' Populate the Recordset. 
    rst.MoveLast 
 
    ' Call EnumFields to print the contents of 
    ' the Recordset. Pass the Recordset object and 
    ' desired field width. 
    EnumFields rst, 17 
 
    dbs.Close 
 
End Sub

The Sub procedure EnumFields is passed a Recordset object from the calling procedure. The procedure then formats and prints the fields of the Recordset to the Debug window. The variable is the desired printed field width. Some fields may be truncated.

Sub EnumFields(rst As Recordset, intFldLen As Integer) 
 
    Dim lngRecords As Long, lngFields As Long 
    Dim lngRecCount As Long, lngFldCount As Long 
    Dim strTitle As String, strTemp As String 
 
    ' Set the lngRecords variable to the number of 
    ' records in the Recordset. 
    lngRecords = rst.RecordCount 
 
    ' Set the lngFields variable to the number of 
    ' fields in the Recordset. 
    lngFields = rst.Fields.Count 
 
    Debug.Print "There are " & lngRecords _ 
        & " records containing " & lngFields _ 
        & " fields in the recordset." 
    Debug.Print 
 
    ' Form a string to print the column heading. 
    strTitle = "Record  " 
    For lngFldCount = 0 To lngFields - 1 
        strTitle = strTitle _ 
        & Left(rst.Fields(lngFldCount).Name _ 
        & Space(intFldLen), intFldLen) 
    Next lngFldCount     
 
    ' Print the column heading. 
    Debug.Print strTitle 
    Debug.Print 
 
    ' Loop through the Recordset; print the record 
    ' number and field values. 
    rst.MoveFirst 
 
    For lngRecCount = 0 To lngRecords - 1 
        Debug.Print Right(Space(6) & _ 
            Str(lngRecCount), 6) & "  "; 
 
        For lngFldCount = 0 To lngFields - 1 
            ' Check for Null values. 
            If IsNull(rst.Fields(lngFldCount)) Then 
                strTemp = "<null>" 
            Else 
                ' Set strTemp to the field contents.  
                Select Case _ 
                    rst.Fields(lngFldCount).Type 
                    Case 11 
                        strTemp = "" 
                    Case dbText, dbMemo 
                        strTemp = _ 
                            rst.Fields(lngFldCount) 
                    Case Else 
                        strTemp = _ 
                            str(rst.Fields(lngFldCount)) 
                End Select 
            End If 
 
            Debug.Print Left(strTemp _  
                & Space(intFldLen), intFldLen); 
        Next lngFldCount 
 
        Debug.Print 
 
        rst.MoveNext 
 
    Next lngRecCount 
 
End Sub

See also

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