I also read articles from http://www.sqlservercentral.com/[^] and they have a good Question of the Day feature that gets emailed to you daily so that you can test your knowledge etc.
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You need to decide what start with. Do you want a general overview? To learn to code (T-SQL)? To learn how to be a DBA? Do you want a certificate?
I would go to a bookstore with a good computer section and look at the SQL books. As an example, have a question in mind, say for T-SQL, lookup data types. If you can understand what they say, that book would be high on the possible list.
Hi.. Recently i created Session State in my project, code is here.. <sessionState mode="SQLServer" allowCustomSqlDatabase="true" sqlConnectionString="Data Source=ADMIN-9F8C57749\SQLEXPRESS;Initial Catalog=kecbliss;Integrated Security=True" timeout="60" stateNetworkTimeout="60"> </sessionState> the problem is day by day aspstatetempsessions table is becoming big so my question is 1.can i delete previous days records from aspstatetempsessions? 2.How to achieve this without affecting to project ? project details front end ASP.NET Back end MS SQL Server
I am new database designer, and now i want to design database that can control avg cost and close stock.could you give me an idea? and please tell me the way to calculate avg cost every transaction(ex: sale,purchase,....) include Item avg cost and report. It is really difficult for new database designer like me. Thank in advanced.
I can't find the answer to this MySQL question in the documentation:
If I execute "LOCK TABLES" through an ODBC connection, and a different thread already holds a lock on the specific table, does the calling thread block until the lock is acquired, or does the call simply fail and return immediately?
The difficult we do right away...
...the impossible takes slightly longer.
I need some help with an SQL query I’ve been asked to create.
Due to lack of communication, an update was done incorrectly and now needs to be fixed (surprise, surprise ). Each employee has 5 Ben_Codes and the start date for all Ben_Codes needs to be equal to the start date of Ben_Code 1. The dates are not constant so for each employee I need to read Ben_Code 1 record to retrieve start_date and then update Ben_Codes 2 thru 5 with that start_date.
To this point I have done very basic updates using SQL Query and would appreciate any guidance you can provide!!
So is this how the responder writes production code when it matters
Rubbish, fix the problem, fix it now and save the script, if it needs repeating then spend the time to make it elegant and efficient. Knowing that it is a kludge is more important than making a one off elegant.
Never underestimate the power of human stupidity
Perfect practice makes perfect. Do it the right way every time.
Nope. Not in the real world.
The real world is about money. Getting it perfect every time takes time and thus costs money. In the real world it isn't possible to get it perfect and most of the time it will not have any significant impact on actual required production functionality. Thus the extra cost is lost revenue which will never be regained.
This of course isn't the same as saying that one can write poor code all the time. But rather one must learn to recognize that ones time is in fact valuable and thus one must prioritize what one spends time on. And since, again in the real world, one can not spend an infinite amount of time on everything, one must make compromises.
And one might specifically look at this thread as an example and note that without knowing about the actual business of which this artifact is a part one will not have any idea about specifics such as size of the table, usage statistics, allowed maintenance, etc. And when one looks at all possible tables in all possible businesses, on average it won't matter.
I see too much bad SQL being written. It should be nipped in its bud.
Myself I see a lot of average code being written - it isn't specific to any language. Which is quite comforting since otherwise humans wouldn't be the ones writing it. If you are seeing a lot of poor SQL then maybe you need to start looking at a broader range of sources.
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