I just discovered that field lengths don't influence table size because Access doesn't pad fields.
A text field with length 20 or 255 doesn't impact the size of the table, just the data in the field does.
I did a test to confirm this.
This blew me away.
So now I ask why do we specify field length for text fields?
Not sure if this is a Table question, a General question or what exactly. I'm working with a lot of records (millions of them). Assuming each record/field contains identical data, I'm wondering which would result in a larger overall DB size:
- 10 million records, 4 fields each
- 30 million records, 2 fields each
What I have is a table something like this:
Record No./Attrib1/Attrib2/Attrib3 (~10 million records).
I could make it Record No./Attrib, which would have roughly 3 times the number of records. I say roughly because not all Attrib have values (currently zero filled but would be eliminated).
I'm hitting the maximum size for an MS 97 database (1 GB), so I'm looking to do whatever possible to stay small.
Any input/suggestions would be appreciated.
Thanks!
I need help with a required field that has different character lengths.
I have an input mask that covers the first 7 characters, however, the users are still entering the incorrect policy numbers, I need to put a stop to it.
I have 3 different policy number lengths involved, 7, 8 and 9.
They are different kinds as well, alpha, alpha/numeric and numeric.
Example below:
P###### - 7 characters
02###### - 8 characters
02M##### - 8 characters
NX####### - 9 characters
HX###### - 8 characters
HXL##### - 8 characters
HXM##### - 8 characters
My question is this -- do I have to create 7 different forms or can I program it to accept only the certain (policy#) characters above. Or can I create a query to insert into my form.
Any help is appreciated, Thanks as always.
I need help with a required field that has different character lengths.
I have an input mask that covers the first 7 characters, however, the users are still entering the incorrect policy numbers, I need to put a stop to it.
I have 3 different policy number lengths involved, 7, 8 and 9.
They are different kinds as well, alpha, alpha/numeric and numeric.
Example below:
P###### - 7 characters
02###### - 8 characters
02M##### - 8 characters
NX####### - 9 characters
HX###### - 8 characters
HXL##### - 8 characters
HXM##### - 8 characters
My question is this -- do I have to create 7 different forms or can I program it to accept only the certain (policy#) characters above. Or can I create a query to insert into my form.
Any help is appreciated, Thanks as always.
I have a SELECT INTO query that pulls info and drops it into a table, after deleting the target table and making it anew upon insertion of the selected records... Is there some way to accomplish the same feat without deleting the target table, so I could retain the target table's fields/field lengths?
I would first set up a target table with fields of specific lengths, and when the data is inserted, the data that fits would insert into these fields, and data that didn't would be truncated..I guess my problem is that when the new table is created it makes all the fields string 255 which is too long when I goto export the data, without having to clip/trim the data for use.
I created a table and some of the fields are shown as Memo however when I imported an Excel database some of the info was cut short in the memo fields!Some of the fields will have ten pages of typed content although it will be well spaced out.
View 1 Replies View Relatedhow to set the Field Size in a new Table. I need the user to be able to type in 17 characters (as in a vehicle VIN). I don't want the user to have the ability to type in anything less than 17 characters or anything more than 17 characters.
View 2 Replies View RelatedWill keeping your field size shorter result in a smaller MDB file?
Or does Access only use as much space as there is real data in its fields.
Way back in the dBASE III days, dBASE would pad all your "real" information with as many spaces as necessary to fill up your field. I suspect that the MDB structure is probably smarter than that.
Another question on the same topic - I believe there is a maximum number of characters in a record (4000?). Can your field sizes add up to more than 4000, as long as the actual data, all combined, never totals 4000...?
Thanks............
..dc
I have a form that utilizes a combo box with 2 options: 0 & 0.5. If I select 0.5 on the combo box the field in the table records it as 2. Why doesn't it reflect as 0.5? And how do I fix it?
This is the general info that I have for the field properties:
Field Size - Double
Decimal Places - 1
Default Value - 0
I have an issue sorting the results on my Access 2010 Report. Here are the details:
- Report Record Source = "Portfolio Ranking"
- Portfolio Ranking is the name of a query
- The query includes a calculated field called "Impact Score"
- FYI: this is a web database (not sure if that limits what I can do)
I want to sort the report on the Impact Score column. However, when I view the query calculation for Impact Score, the "Sort" field says "(not sorted)" and it's greyed out, so I can't select Descending as desired.
I have a report that shows the daily activities. it shows how long it takes to do each task. however some tasks are 8 hours andsome are 10 hours. when all these times are added together it will give the time on a clock. not a total of hours spent.
i.e.
treatment1 : 8 hours
treatment2: 10 hours
this will give 06:00 in short time. in medium time it will give 18:00.
however if I add another 12 hours to that it will give 06:00.
I want it to show either 1 day and 4 hours /or 30 hours.
I have a query that consists of three fields. This query is then placed in a form. I would like to set the physical length of my fields because one field consists of 4 digit numbers (I want the size of this to be relatively small) and the other two field consist of categories (field that need more space so that the user may see each letter of the category) Please help.
View 1 Replies View RelatedI have a query that consists of three fields. This query is then placed in a form. I would like to set the physical length of my fields because one field consists of 4 digit numbers (I want the size of this to be relatively small) and the other two field consist of categories (field that need more space so that the user may see each letter of the category) Please help.
View 2 Replies View RelatedI've done some searches on this, and wasn't able to find an answer--just a hint that this isn't possible. So, I'm asking to be sure.
I know there is a limit to field size at 255--but is there ANY way around that?? I'm transferring a file where some fields have a lot of information, usually not more than 255, but what's there HAS to be there.
If there's no way around it, I'll just have to make an overflow field and move them manually. There have been too many changes made to the table already to start from scratch.
Can I just state... for the record.. that 255 is a stupid limit. It's stupid to HAVE a limit.. it's like Gates saying that we'll never need more then 24 or 500k or whatever the number was.
Thanks,
Siena
Is there any way of increasing a text field size to above 255?
View 3 Replies View RelatedHi.
I have a main table (with other tables related to it).
It has the 255 max number of fields. (I know... But bear with me.)
ANyway, I need to change some field's size to smaller sizes. But if I try to change them, even 1 at a time, I get the cannot do because I have too many fields defined.
Ideas???
Russ
MS documentation states that space is not reserved for unused characters in a text field. Does this mean that there is no storage penaly for having a text field 255 as opposed to 80.
On a more general note are there any tools to help calculate the size of a table?
Im doing a coursework on ms access on School Management System. I have a table 'tblSubject' containing fields: 'Subject ID' and 'Subject Name' . A student has the right only to choose a maximum of 8 subjects, that is , the field 'Subject ID' must have only 8 records/entries. How to do this ???????
View 1 Replies View RelatedHi,
I have searched on this and it says: it doesn't matter as long as it's of type text. It matter if it's long integer..etc. I am not quite sure.
I wonder if default size '50 of fields' of type text occupies that size in memory even though the data in the field is not 50 chars.
Regards,
B
How to increase field size in a certain table from 10 to 50 from Database (programaticaly).
View 1 Replies View Relatedi just wanna ask can i set a field size for a textbox so that it can be entered only a limited number a words
For example, when i set field size = 8 and want to type beautiful, it will stop at "beautifu".
is there any way to increase the size of the text field beyond the 255 character limit? I'm creating an incident report and its diffilcult to summarize an accident in less than 255 characters.
View 3 Replies View RelatedHow to change size of Label and field with out both at once, default. Access 7
View 1 Replies View Relatedunfortunately I am making a form using more than 255 fields which is the max for access 97. I tried using more than 1 table but still no help.
what can I do? will upgrading help?
thanks
andrewm
There is probably a real simple way to do this but a couple of us are here racking our brains. :o Is there a way to tell how big a table is size wise? example 1.2mb
Thanks,
-Sandy :)
I have a subform that shows notes entered but if there is more text in the field then you cant see it all. Can I make it so that this field will grow so the whole input is visible or can I make it so when you click on it it opens in a larger window showing all the txt?
View 1 Replies View Related