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Adding records to a csv file


File operations are fast. Do not use any stream at class level. Open, add, close. File.AppendText

Using sw As StreamWriter =
File.AppendText({path})
  sw.WriteLine({record})
End Using

Categories : Vb.Net

Related to : Adding records to a csv file
All records being deleted when deleting records from a temp table
Not sure what you get in @TheDocumentIDs, but I suppose it should work for you. First of all as @Chris mentioned, you should check put condition to where clause and as documentIds is a list of id's it should used with IN condition and not equality, that's why you need or use sp_executesql or fill id's to a temp table. EXECUTE sp_executesql N'delete from [master_group_documen

Categories : SQL
Find the Top 5 records in column B for the Top 5 records of Column A
Most databases support the ANSI standard row_number() function. You can use this function with aggregation to get what you want: select t.* from (select rc1, rc2, count(*) as cnt, row_number() over (partition by rc1 order by count(*) desc) as seqnum from table t group by rc1, rc2 ) t where seqnum <= 5;

Categories : SQL
Automatic adding the common part to function of a class without explicitly adding those to every function
You can define two methods that do the common logic, for example - preProcess() and postProcess(). If the methods that execute this common logic are instnace methods of ObjectUtils, you can even override the common methods in sub-classes of ObjectUtils if you want to alter the common logic. If the methods that share the common logic are static methods, preProcess() and postProcess() would also b

Categories : Java
How To Get Count of the records in sql
Try to replace GROUP BY tblNews.id With GROUP BY tblNews.id, tblNews.newsTitle, tblNews.createdate, tblNews.viewcount All the expressions in the SELECT list should be in the GROUP BY or inside an aggregate function.

Categories : SQL
how to get the most commented set of records?
Firstly, your model definition is wrong. i dont see a ForeignKey in Comment Model from Video Model. video_idas IntegerField does not just belong there. this is how it should be: Since you didnot post your Video Model, i just make up one: class V_Video(models.Model): # name = models.CharField(max_length=100) # .... class Comment(models.Model): video = models.ForeignKey(V_Video, related_

Categories : Python
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