MySQL Forums
Forum List  »  Newbie

VBA interaction between MS Excel and MySQL
Posted by: Nathan Maycher
Date: July 03, 2006 10:21AM

Well after spending more time than I wish to admit I thought I would post some code that I adapted/created (thanks to Carlmack for core sections of the code). This code provides simple functionality using VBA to allow for the creation/deletion of MySQL tables and removing/adding records to tables.

I haven't found anything like this on this site or any other so if this duplicates previous posts my apologies. Hope it saves others as much time as it would have saved me!

Nathan

---------------------------------------------------------
Option Explicit
Option Base 1

Sub excelmysql()
' VBA to perform various actions on MySQL tables using VBA
' Majority of the original code adapted from Carlmack http://www.ozgrid.com/forum/showthread.php?t=46893

' PLEASE DO THE FOLLOWING BEFORE EXECUTING CODE:
' 1)In VBE you need to go Tools/References and check Microsoft Active X Data Objects 2.x library
' 2)Install MySQL ODBC 3.51 Driver. See dev.mysql.com/downloads/connector/odbc/3.51.html or google "MySQL ODBC 3.51 Driver"

'-------------------------------------------------------------------------
' Connection variables
Dim conn As New ADODB.Connection
Dim server_name As String
Dim database_name As String
Dim user_id As String
Dim password As String

' Table action variables
Dim i As Long ' counter
Dim sqlstr As String ' SQL to perform various actions
Dim table1 As String, table2 As String
Dim field1 As String, field2 As String
Dim rs As ADODB.Recordset
Dim vtype As Variant

'----------------------------------------------------------------------
' Establish connection to the database
server_name = "127.0.0.1" ' Enter your server name here - if running from a local computer use 127.0.0.1
database_name = "dbname" ' Enter your database name here
user_id = "userid" ' enter your user ID here
password = "userpassword" ' Enter your password here

Set conn = New ADODB.Connection
conn.Open "DRIVER={MySQL ODBC 3.51 Driver}" _
& ";SERVER=" & server_name _
& ";DATABASE=" & database_name _
& ";UID=" & user_id _
& ";PWD=" & password _
& ";OPTION=16427" ' Option 16427 = Convert LongLong to Int: This just helps makes sure that large numeric results get properly interpreted

'-------------------------------------------------------------------------
' Various Actions

' Define variables (not all of the variables will be required for each action)
vtype = Array("Text", "LongText", "Int(10)", "Float", "Double", "Date", "Time") ' array of commonly used MySQL variable types
table1 = "firsttable"
table2 = "secondtable"
field1 = "fieldtitle1"
field2 = "fieldtitle2"

'-------------------------------------------
' Create or remove tables

' Remove table from database
GoTo skipremove
sqlstr = "DROP TABLE " & table1
conn.Execute sqlstr
skipremove:

' Create a new blank table with the specified fields
GoTo skipcreate
sqlstr = "CREATE TABLE " & table1 & "(" _
& field1 & " " & vtype(1) & "," _
& field2 & " " & vtype(2) _
& ")"
conn.Execute sqlstr
skipcreate:

'---------------------------------------------
' Add, remove or extract records from an existing table

' Erase entire table contents but do not remove the table
GoTo skiperase
sqlstr = "DELETE FROM " & table1
conn.Execute sqlstr
skiperase:

' Extract MySQL table data to first worksheet in the workbook
GoTo skipextract
Set rs = New ADODB.Recordset
sqlstr = "SELECT * FROM " & table1 ' extracts all data
rs.Open sqlstr, conn, adOpenStatic
With Worksheets(1).Cells ' Enter your sheet name and range here
.ClearContents
.CopyFromRecordset rs
End With
skipextract:

' Write new entries to a table from the first sheet of the workbook
GoTo skipwrite
With Sheets(1)
For i = 1 To 10000
If Cells(i, 1) = "" Then Exit For
sqlstr = "INSERT INTO " & table1 & " SET " _
& field1 & " = '" & Cells(i, 1) & "', " _
& field2 & " = '" & Cells(i, 2) & "'"
conn.Execute sqlstr
Next i
End With
skipwrite:

'-----------------------------------------------------------------------
' Close connections
On Error Resume Next
rs.Close
Set rs = Nothing
conn.Close
Set conn = Nothing
On Error GoTo 0
End Sub

Options: ReplyQuote


Subject
Written By
Posted
VBA interaction between MS Excel and MySQL
July 03, 2006 10:21AM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.