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I don't think I am the only person wondering about this. What do you usually practice about database behavior? Do you prefer to delete a record from the database physically? Or is it better to just flag the record with a "deleted" flag or a boolean column...
Started by jerbersoft on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
This would save you, at that point you would need to really delete it, then re-create the records (on undelete it and modifyIf you are concerned about....
To mark the record, its good to consider making a view, for active records.
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How to delete duplicate records in sql?
Started by krishna bhargavi on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
SQL> select t, count(*) from t23 group by t as necessary to specify what... .
I start by creating some duplicate records ...
SQL> delete from t23 2 where equivalent.
And now I zap them, using T to define "duplicate records"...
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Please see data given below
I want to keep one set of records and want to delete another duplicate set of records. You can see ForeignKey are same just Primary Key is different.
Need to keep 2 records having lowest primary key among the set of 4 records...
Started by Muhammad Kashif Nadeem on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
I cannot seeDelete from Table mytable t1 where exists (select 1 from mytable t2 where t2.PrimaryKey <' ;WITH CTE AS ( SELECT *, ROW_NUMBER() OVER... .
CTE functionality from SQL Server 2005, you can delete Duplicate records as follows
(PS.
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Ask your Facebook Friends
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I have the following situation: I built an Access form with a subform (which records are linked to the records of main form via certain key). When I try to delete any record in the subform, I get the following message: “Access has suspended the action...
Started by TobiasWittenburg on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Editing a record to undo any edits before deleting the record:
DoCmd.RunCommand acCmdUndo
Also check the "row locking.
If you are currently 'editing' the current form then it will not allow the action .
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I have a requirement where i have two records with same value except the PK. how can i delete one of them.I have plenty of such duplicate records.
Answer Snippets (Read the full thread at stackoverflow):
delete from thetable where pk_column_name=pk_value;
DELETE T1 FROM My_Table T1 INNER JOIN My_Table a subquery:
DELETE FROM My_Table WHERE pk_column IN ( SELECT T1.pk_column FROM My_Table T1 INNER JOIN My duplicates, and use DELETE....
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What's the best way to delete duplicate records in a mysql database using rails or mysql queries?
Started by nan on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Step three: create another temporary table with all the recordsWhat you can do is copy the distinct records into a new table by:
select distinct * into NewTable it here in case someone else comes along....
To delete, loaded from the text file.
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How do I delete records from a DataGrid as well as the source database in ASP.NET using a checkbox to select them?
Started by Domnic on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Step 2: Delete directly.
To get the references to the selected items in the grid control .
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Possible Duplicate:
What is the best way to delete a large number of records in t-sql?
What is the fastest way to delete massive numbers (billions) of records in SQL?
I want to delete all the records that match a simple rule like myFlag = 3 .
Is it possible...
Started by esylvestre on
, 13 posts
by 13 people.
Answer Snippets (Read the full thread at stackoverflow):
TRUNCATE does not really delete the records, what it does is it moves the high water markSorry it is not possible to add a WHERE clause to TRUNCATE
You will have to use a DELETE
You can't the locking overhead and potential contention....
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What is the simplest way to delete records with duplicate name in a table? The answers I came across are very confusing.
Related: Removing duplicate records from table
Started by Bryan on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
delete t1 from tTable t1, tTable t2 where t1.locationName = t2.locationName and t1.id > t2.id
http://www.cryer.co.uk/brian/sql/sql_delete_duplicates.htm
SQL HAVING COUNT(*) > 1 ) DELETE....
I got it! Simple and it worked great.
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I have the following code snippet to delete records from a database given a primary key. This is called via an AJAY request, through GET. Anyone who were to examine my javascript could work out the URL and delete arbitrary records. What can I do to prevent...
Started by Joshxtothe4 on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
Are authorized user supposed to be able to delete any record they see fit make sure that the user....
Well, if not everyone can delete a record, make sure this one is behind aspect to your question.
Pick a row to delete.
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