Iain King wrote:
I'm manipulating an MS Access db via ADODB with win32com.client . I
want to rename a field within a table, but I don't know how to. I
assume there is a line of SQL which will do it, but nothing I've tried
(from searching) has worked.
Basic code:
import win32com.client
connection = win32com.client .Dispatch(r'ADO DB.Connection')
DSN = 'PROVIDER=Micro soft.Jet.OLEDB. 4.0;DATA SOURCE=dbfile.m db;'
connection.Open (DSN)
connection.Exec ute("ALTER TABLE tablename CHANGE from to") #this sql
doesn't work
connection.Clos e()
<code>
import os, sys
from win32com.client .gencache import EnsureDispatch as Dispatch
DATABASE_FILEPA TH = r"c:\temp\test. mdb"
CONNECTION_STRI NG = "Provider=Micro soft.Jet.OLEDB. 4.0; data Source=%s" % \
DATABASE_FILEPA TH
if os.path.exists (DATABASE_FILEP ATH):
os.remove (DATABASE_FILEP ATH)
adox = Dispatch ("ADOX.Catalog" )
adox.Create (CONNECTION_STR ING)
adox = None
db = Dispatch ('ADODB.Connect ion')
db.Open (CONNECTION_STR ING)
try:
db.Execute ('CREATE TABLE dtest (id INT, data INT)')
db.Execute ('INSERT INTO dtest (id, data) VALUES (1, 2)')
try:
db.Execute ('SELECT id, newdata FROM dtest')
except:
print "FAILED as expected"
else:
print "SUCCEEDED unexpectedly"
try:
db.Execute ('SELECT id, data FROM dtest')
except:
print "FAILED unexpectedly"
else:
print "SUCCEEDED as expected"
adox = Dispatch ("ADOX.Catalog" )
adox.ActiveConn ection = db
adox.Tables ("dtest").Colum ns ("data").Nam e = "newdata"
adox.Tables.Ref resh ()
finally:
db.Close ()
db = Dispatch ('ADODB.Connect ion')
db.Open (CONNECTION_STR ING)
try:
try:
db.Execute ('SELECT id, data FROM dtest')
except:
print "FAILED as expected"
else:
print "SUCCEEDED unexpectedly"
try:
db.Execute ('SELECT id, newdata FROM dtest')
except:
print "FAILED unexpectedly"
else:
print "SUCCEEDED as expected"
finally:
db.Close ()
</code>
TJG
