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Securing your database

Resolved · Low Priority · Version 2003

Reply Tue 25 Aug 2009, 16:36Delegate Werner said...

Werner has attended:
Access Introduction course
Excel Advanced course

Securing your database

How do I secure my database and restrict user from changing anything on it. I know you can go to the user and group accounts.... is that the best way

Need a little lock on it..

For upcoming training course dates see: Pricing & availability

Reply Wed 26 Aug 2009, 12:19Delegate Werner said...

RE: Securing your database

Got my permissions and access to database figured out. all sorted now, cheers!

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Access tip:

Calculating The Difference Between Dates

If you wish to calculate the time between two date fields, this can be done in a number of ways:

1. As a calculated field in a query
2. As a calculated control in a form or report
3. As a calculation in a VBA procedure.

The basic syntax to get the number of days between two dates is:

=[One Date Field] - [Another Date Field]

You can also use one of the following functions:

=Month([One Date Field] - [Another Date Field])
which calculates the number of months between the two fields

=Year([One Date Field] - [Another Date Field])
which calculates the number of years between the two fields.

Another function is the DateDiff() function.

It uses an argument to determine how the time interval is measured. For example:

=DateDiff("q",[One Date Field] - [Another Date Field])
returns the number of quarters between the two fields.

Other intervals that can be used in this expression are as follows:
"yyyy" - Years
"m" - Months
"d" - Days
"w" - Weekdays
"ww" - Weeks
"h" - Hours
"n" - Minutes
"s" - Seconds

View all Access hints and tips