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Access 2010: Queries in Depth
Illustration by Neil Webb

Defining today's date


From:

Access 2010: Queries in Depth

with Adam Wilbert

Video: Defining today's date

So far, we've taken a look at how to work with dates relative to each other or relative to a specific and static date range. Access provides a couple of additional functions that will allow us to define dates relative to today or relative to right now. These are the queries that require a date range such as within the last 30 days or 2 weeks from today. The first part requires us to accurately define today's date. In the next movie, we'll take a look at how we can combine this with some additional functions to perform some calculations to define time span. Let's start a new query in Design view.
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  1. 9m 9s
    1. Welcome
      1m 10s
    2. Using the exercise files
      41s
    3. Introducing the database
      4m 29s
    4. Previewing the course
      2m 49s
  2. 17m 17s
    1. Understanding queries
      3m 31s
    2. Following naming conventions and best practices
      2m 56s
    3. Using the Query Wizard
      5m 21s
    4. Exploring the design interface
      5m 29s
  3. 26m 39s
    1. Defining criteria
      5m 40s
    2. Understanding comparison operators
      3m 19s
    3. Defining the column headers
      2m 49s
    4. Exploring the property sheet
      7m 32s
    5. Printing query results
      2m 41s
    6. Working with joins
      4m 38s
  4. 14m 14s
    1. Understanding parameter queries
      4m 27s
    2. Obtaining parameters from forms
      5m 17s
    3. Creating a combo box
      4m 30s
  5. 23m 24s
    1. Understanding the Totals field
      5m 31s
    2. Creating aggregate calculations
      3m 31s
    3. Exploring the Expression Builder interface
      4m 28s
    4. Using mathematical operators
      5m 46s
    5. Applying text functions
      4m 8s
  6. 24m 23s
    1. Understanding dates as serial numbers
      2m 42s
    2. Specifying a range of dates or times
      3m 47s
    3. Formatting dates
      4m 31s
    4. Using other Date/Time functions
      3m 47s
    5. Defining today's date
      2m 41s
    6. Calculating time intervals
      6m 55s
  7. 20m 9s
    1. Introducing the conditional IIf function
      2m 57s
    2. Creating an IIf function
      7m 31s
    3. Nesting IIf functions
      4m 57s
    4. Using the Switch function
      4m 44s
  8. 20m 41s
    1. Understanding the reporting tool
      2m 13s
    2. Building the form
      6m 57s
    3. Building the query
      5m 4s
    4. Building the report
      3m 30s
    5. Finalizing the reporting tool
      2m 57s
  9. 25m 37s
    1. Finding duplicate records
      2m 17s
    2. Identifying unmatched records
      2m 29s
    3. Creating crosstab results
      2m 57s
    4. Creating backups
      1m 29s
    5. Creating update queries
      3m 22s
    6. Making, deleting, and appending records
      5m 36s
    7. Uniting tables
      3m 16s
    8. Embedding SQL code in queries
      4m 11s
  10. 1m 0s
    1. Next Steps
      1m 0s

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Access 2010: Queries in Depth
3h 2m Intermediate Jun 16, 2011

Viewers: in countries Watching now:

In this course, author Adam Wilbert illustrates how to create and leverage real-world queries and turn raw data into usable information. The course covers setting up queries, performing calculations, using the built-in Access functions to further refine query results, and identifying top performers or areas for improvement based on a range of criteria.

Topics include:
  • 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
Subjects:
Business Databases
Software:
Access Office
Author:
Adam Wilbert

Defining today's date

So far, we've taken a look at how to work with dates relative to each other or relative to a specific and static date range. Access provides a couple of additional functions that will allow us to define dates relative to today or relative to right now. These are the queries that require a date range such as within the last 30 days or 2 weeks from today. The first part requires us to accurately define today's date. In the next movie, we'll take a look at how we can combine this with some additional functions to perform some calculations to define time span. Let's start a new query in Design view.

Create, Query Design, and I'll add our Orders table. Go ahead and say Close. Instead of building an actual query, I'll use the fields here to demonstrate the Date, Time, and Now functions. The Date function is written like this, Date(). This tells Access to fetch the current date. In the next field I'll write out Time followed by an open and closing parentheses. This tells Access to fetch the current time. In the third field, I'll write Now followed by open and closing parentheses.

This tells Access to get the current date and time and combine them in one field. Let's go ahead and run this query. I'll expand the fields and you'll see that Access has returned the current date and time that I'm recording this movie. Today is May 17th, 2011 at 3:33:48. The third column, the Now expression, takes our Date and Time field and combines them into one field. Now, let's take a look at how we could use the Format function to format our date. Let's go back into Design view and I'll highlight these two fields and press Delete.

Now I want to use the Format function to write a statement that will format our date. Let me expand this open a little bit and we'll start typing. The Format function starts with Format and an open parenthesis. The first thing we need to supply is the date that we want to format. In the movie on the Format function we took the OrderDate from the Orders table. Here we just want to format the current date. So we'll supply the Date function. Date(). The second part we need to supply is how we want it to be formatted. We can use a comma and a quotation mark to tell it that we're moving onto the next piece and then let's format it like this, m.d.yy.

We'll finish our statement with a closing quotation mark and a closing parenthesis. Now, if I run this query, we'll see that the Format function is taking today's current date and it's reformatting it in the way that I specified. So now that we can accurately define the current date, we can use this functionality to help us define date ranges relative to today. We'll take a look at that in the next movie.

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