I need a flexible table that displays dates. By flexible, I mean, if I put in June 15, 1976, it displays as such. But if I put 20, Access calculates that 20 in the same field as today's date - 20 years.
I set the formatting of the date/time field in table: tbl_ageLimit to #, so it displays a serial date rather than a user readable date. This table has one field: ageLimit.
I am trying to develop a query to recognize if the date is not relevant in its current state and then convert it to something relevant and put it in another table that will constantly update.
Right now, I'm just trying to get formula to work on recognizing and converting the date. This is the formula that works splendidly in excel, but doesn't seem to be working in MS Access:
IIF([ageLimit]<=100,Date()-365*[ageLimit],[ageLimit])
It recognizes if the field has a number in it that is less than 100. But it's not doing the math and displaying a new record in the new table. Below is the sql:
SELECT tbl_ageLimit.ageLimit INTO tbl_allAges
FROM tbl_ageLimit
WHERE (((tbl_ageLimit.ageLimit)=IIf([ageLimit]<=100,Date()-365*[ageLimit],[ageLimit])));
Can someone kindly point out to me what I'm doing wrong? Thank you.
As requested, here are snapshots of the problem:
The table that is created is not showing the fifth record. Stumped.
Consider removing the WHERE clause as you do not need to filter records. Since you intend to evaluate the IIF() expression, place in the SELECT clause:
SELECT IIf([ageLimit]<=100, Date()-365*[ageLimit], [ageLimit]) As [age_Limit]
INTO tbl_allAges
FROM tbl_ageLimit
Related
I have created a database to store genealogical records. I have created a tabular form to display records which include a date text box, however I am struggling to display the date text boxes with the formatting different on each row. The different formats I require are "dd/mm/yyyy" where a full date is known, "yyyy" where the year only is known, and the text box to be left blank if the date is unknown. The table the form is aligned to has a field to indicate whether the date is a full date, year only, or no date - field values "fd", "yo" and "nd" so easy to test the format required for each row.
I cannot see how this is possible using the Conditional Format option.
I am happy to use VBA but have struggled with this. I am new to Access and new to VBA but have a technical background (coding in C++ and Java) and VBA currently looks alien to me - but willing to get into it.
Any pointers please will be much appreciated.
Always store dates as DateTime as it can be stored as Null for unknown.
Then, have a Boolean field, YearOnly, to mark values where only the year is known; store the year with any date of the year, like 2020-01-01.
Now, use a query like this:
SELECT
ID,
[Date],
YearOnly,
Format([Date],"yyyy" & IIf(Not [YearOnly],"-mm-dd")) AS DisplayDate
FROM
YourTable;
[Solved] Thank you Kostas K and Gustav, I have implemented the query you suggest, which took me a while to figure out, but I have it now working in my tabular form. My problem was I was trying to achieve this using VBA on loading the form. VBA wise I am a complete novice.
Thanks Bob H
I'm having trouble copying a date field from one table to another in Access, the date format in my tables is showing as 23/08/2019 (23rd August). Usually I pull data into a VB.NET application, process it then insert it back into the DB, when I do this I use a function to convert the date into American format 08/23/2019 and it works fine, but I'm trying to copy the date into another table just using SQL and it puts it the wrong way around:
INSERT INTO Bets (rdate, track, horse, odds)
SELECT rdate, track, horse, odds
FROM Selections;
This is odd as even though it shows the UK format in original table, it still works correctly, I.E. records with date 02/01/2019 would appear when selecting records for January 2019, but copying it to another table in this format makes it backwards.
There is nothing to "convert".
You are mixing up the date value and the display format. The value is what matters, the format is for display only.
If you don't apply a specific format when listing the values, a default format is applied.
I am having issues trying to create code to make a graph that is dependent upon months. So I have Column A which is the beginning of the week date, i.e. 1/1/17. In Column B I have the count from that week of issues occurred. I would like to group together the count by month, using the Month function, so for January there are 37 issues, February - 23, etc. And then make a graph accordingly where the first month is titled January.
Eventually, I would like to similarly do this on a quarterly basis as well, but any help with the monthly issue first would be greatly appreciated. Here is a screenshot of the data which is located in Worksheets("Report").
First off, format your data as a table since that will make your life much easier. You will need to add headers to each column. This will make your data easier to read, and easier to maintain.
To format it as a table highlight the range, and then press CTRL+T. Make sure to check 'My data has headers'.
Good, now click inside the table, Insert > PivotTable. Select the destination. For rows you want Date, for values you want Sum of Value (where value is whatever you name your values column.
Then finally, check out this article for the whole rundown of Groupby: http://www.contextures.com/xlPivot07.html.
To be fair, there is an easy enough way of doing this without a PivotTable (adding a helper column for Month for example), but there's no need to reinvent the wheel. Additionally, if you want to add Qtr. eventually, you're better off familiarizing yourself with workhorses of excel.
Lastly, once you have taken the above steps, you'll likely find the Timeline slicer very helpful. You can use that to visualize specific periods on your pivot or chart.
Minor Note: This all assumes your dates are true dates. If they aren't, you'll likely run into more issues.
I have a table that has more than one date fields (say six or seven) and I just want to retrieve only the dates that match today's date. Please help. Really appreciate it thanks
This is a very specific problem, so the best way to get the result you want is to code some part as an script on access.
For getting those rows where at least one date is the same as today's date, you should use something like this.
SELECT * FROM Table t
WHERE Date() IN (t.field1, t.field2, ...)
You should add all the fields you want to check inside IN clause.
On the Access for you should be able to process the data.
In my Access database, I have a table called customers. In this table I have a column called DateEntered. The data type for the field is short text.
The values in this column are not coherent - they come in several variations:
MM-DD-YYYY,
MMDDYYYY and
MM/DD/YYYY.
There doesn't seem to be any standard set.
My goal is to select all customers from 2012. I tried
select *
from customers
where DateEntered <('%2013') AND >('%2012');
but it comes up blank when I run it.
Can anyone point out what I'm failing to do correctly & more importantly explain why exactly this query doesn't work in Access? From my understanding of SQL (not very advanced) this should work.
Another variant)
select * from customers where RIGHT(DateEntered, 4) = '2012'
If you have control over the database and application code, the best way to handle this is to use an actual Date field instead of text in the table.
One way to handle this would be to add a new field to the table, write a query or two to correctly convert the text values to actual date values, and populate the new field.
At this point, you would then need to hunt down the application code the refers to this field in any way and adjust to treat the field as a date, not text. This includes your insert and update statements, report code, etc.
Finally, as a last step, I would rename the original text field (or remove it altogether) and rename the new date field to the original field name.
Once you fix the problem, querying against the field will be a piece of cake.
Alternatively, if you can't alter the table and source code, you can use the date conversion function CDATE() to convert the text value to an actual date. Note that you may need to guard against non-date entries (NULL or empty string values, as well as other text values that aren't really dates in the first place). The IsDate() function can be your friend here.
If you have the time and patience, fixing the data and code is the better approach to take, but sometimes this isn't always feasible.
Why don't you use LIKE operators (they're appropriate when you have a pattern using % and _):
select * from customers where DateEntered like '%2013' or DateEntered like '%2012'