Join Adam Wilbert for an in-depth discussion in this video Using mathematical operators, part of Access 2010: Queries.
One of the key factors in creating a clean and robust database is knowing…what data you need to store and what data you can derive or create from other records.…For instance, if we think about how our payroll database might work, [00:00:14.2] the number we are after is how much the employee earned at the end of a two week pay period.…But will the dollar amount appear in any of our tables? Probably not.…More than likely a payroll database will simply include a record for the…employee's hourly wage and another record of the number of hours worked on each shift.…
When cutting the checks the payroll department will simply add up the number of…hours worked during that pay period and multiply that by the hourly wage.…Then they will have the total for the check.…By using some simple mathematical operations, in this case addition and…multiplication, the payroll department is able to derive the value of the check…even though it doesn't actually appear anywhere in the database.…The Design view in Access allows us to easily add some of these types of…
- Naming conventions and best practices
- Working with joins
- Using comparison operators
- Defining criteria for select queries
- Creating parameter queries
- Creating calculated fields
- Working with dates and times
- Using the Expression Builder
- Creating conditional statements
- Making, deleting and appending records
- Building reports
Skill Level Intermediate
1. Creating Queries in Access
2. Creating Simple Select Queries
3. Creating Parameter Queries
Creating a combo box4m 30s
4. Applying Aggregate Calculations (aka Totals Queries)
5. Working with Dates in Queries
6. Understanding Conditional Statements
7. Linking It All Together
8. Alternative Query Types
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