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#11
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Data Rules Violations
Sorry, I didn't see answers to the questions ... I asked them to get
clarification. Regards Jeff Boyce Microsoft Access MVP -- Disclaimer: This author may have received products and services mentioned in this post. Mention and/or description of a product or service herein does not constitute endorsement thereof. Any code or pseudocode included in this post is offered "as is", with no guarantee as to suitability. You can thank the FTC of the USA for making this disclaimer possible/necessary. "John Quinn" wrote in message ... The legal community for the Department of Education is now requiring a weekly account of all the students we test and grade. I move the infor to the SQL database in the event of a law suit by the parents. Thanks for getting back! Hope this gives you an understanding of what we face in education. John Q. "Jeff Boyce" wrote: John What "historical table"? If it truly is historical info only, why are you "updating" it? How do you know that there are 7? Do you know which field(s) contain the bad info? Does "bad" = corrupted, or does "bad" = inaccurate? More info, please... Regards Jeff Boyce Microsoft Access MVP -- Disclaimer: This author may have received products and services mentioned in this post. Mention and/or description of a product or service herein does not constitute endorsement thereof. Any code or pseudocode included in this post is offered "as is", with no guarantee as to suitability. You can thank the FTC of the USA for making this disclaimer possible/necessary. "John Quinn" wrote in message ... I have a table of 19,000 records with about 225 fields in each record. It is not an indexed table, just a table of educational transactions. Some how when I go to update the historical table seven (7) records have gotten some bad info in them. I know I can copy the table to another database and look at them one field at a time, but this will take forever. Does anyone know a quick method of finding the seven bad records? Thanks in Advance John Q . |
#12
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Data Rules Violations
If any one of the records in the table pertain to more than one subject, then
it is not properly normalized (i.e. designed). If you have groups of fields that repeat, for example grade1, source1, approval1, grade2, source2, approval2.... then it is not normalized at all. Looking at your description (if I read it right, that all this is in one table), then you do have that situation: for each student, in each subject, there are many scores. The scores in turn have fields for reviewer, approval, suggestions,.... Given this, "Scores" requires its own table, with a PK of Student_ID, Subject_ID, Score_ID, plus all the other data. They may well be more tables that would result if you do the complete normalization process, and the complexity might (and that's a big *might*!) not be as much as you think. HTH John John Quinn wrote: It is a sequence of information and approvals for each subject, grade, homework and tests. If a student is taking English then we need to show all scorces given and the relationship to the previous grad or score. With each entry you must always carrt fields of data for who reviewed it, approved it, made suggestions or rejected the educational technique used. There is also a comparison made to grades when the student goes into the next level of education. For example from grade school to middles school, from middle school to junior high and from junior high to college. We even have to know that the student entered college and if that student graduated or not. The designers at Fort Hood, indicated iot was the toughest applications they have ever seen. Microsoft consultants were amazed at what the attorney's in Washington DC want us to keep an accounting of. The bad data message comes from an append query. The tables are suppose to be identical but for some reason this happens once in a while. I eventually find out where the problem is, but it takes so long. Thanks for the interest. John Q. Hi - [quoted text clipped - 22 lines] John Q -- John Goddard Ottawa, ON Canada jrgoddard at cyberus dot ca Message posted via AccessMonster.com http://www.accessmonster.com/Uwe/For...esign/201003/1 |
#13
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Data Rules Violations
You may be asking yourself why would you care? Why bother with
"normalization"? MS Access is a relational database. It's features and functions are optimized for well-normalized data. If you try to feed it 'sheet data, both you and Access will have to work overtime to overcome that 'sheet data structure. Good luck! Regards Jeff Boyce Microsoft Access MVP -- Disclaimer: This author may have received products and services mentioned in this post. Mention and/or description of a product or service herein does not constitute endorsement thereof. Any code or pseudocode included in this post is offered "as is", with no guarantee as to suitability. You can thank the FTC of the USA for making this disclaimer possible/necessary. "J_Goddard via AccessMonster.com" u37558@uwe wrote in message news:a4b7fe09ac16b@uwe... If any one of the records in the table pertain to more than one subject, then it is not properly normalized (i.e. designed). If you have groups of fields that repeat, for example grade1, source1, approval1, grade2, source2, approval2.... then it is not normalized at all. Looking at your description (if I read it right, that all this is in one table), then you do have that situation: for each student, in each subject, there are many scores. The scores in turn have fields for reviewer, approval, suggestions,.... Given this, "Scores" requires its own table, with a PK of Student_ID, Subject_ID, Score_ID, plus all the other data. They may well be more tables that would result if you do the complete normalization process, and the complexity might (and that's a big *might*!) not be as much as you think. HTH John John Quinn wrote: It is a sequence of information and approvals for each subject, grade, homework and tests. If a student is taking English then we need to show all scorces given and the relationship to the previous grad or score. With each entry you must always carrt fields of data for who reviewed it, approved it, made suggestions or rejected the educational technique used. There is also a comparison made to grades when the student goes into the next level of education. For example from grade school to middles school, from middle school to junior high and from junior high to college. We even have to know that the student entered college and if that student graduated or not. The designers at Fort Hood, indicated iot was the toughest applications they have ever seen. Microsoft consultants were amazed at what the attorney's in Washington DC want us to keep an accounting of. The bad data message comes from an append query. The tables are suppose to be identical but for some reason this happens once in a while. I eventually find out where the problem is, but it takes so long. Thanks for the interest. John Q. Hi - [quoted text clipped - 22 lines] John Q -- John Goddard Ottawa, ON Canada jrgoddard at cyberus dot ca Message posted via AccessMonster.com http://www.accessmonster.com/Uwe/For...esign/201003/1 |
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