One way to approach this is to have a create a baseline set of scripts which created all of your DB objects: Tables, Indexes, Triggers, Stored Proc, etc. Check those scripts into a version control system () along with your source code. (Make a folder called "SQL" or something)
As you revise your application, create ALTER scripts for the DB objects (Tables, Indexes, Triggers, Stored Proc, etc) which will take the database from State A to State B.
Use some type of naming convention which will show the progress from one version to another.
When you get to a major release of the software, such as v2.0.0, then Re-Create the CREATE DB object scripts which will include all of your ALTER scripts; this way you don't have to keep rolling up schema changes.
ALSO: Take into consideration that you may need Data Manipulation scripts to "seed" some of your tables with basic data. Handle those scripts with something like ALTER_Data_1.0.0_to_1.0.1
Just giving you some ideas, not completely thought out, but I remember doing something like on previous projects.
BTW: I use Subversion / SVN / Tortoise as version control for myself.
In this case Shipment_date is an actual DATE data type whereas the Sales_Order_Ship_Date is a VARCHAR(42) data type.
It works really well on the condition that the original string data represents a date of at least 2010-01-01. The string data is formatted as follows: YYYYMMDD so 2010-01-01 is 20100101 in the string version. It converts perfectly to 2010-01-01 and the same is true for later dates. Any string representing a date before 2010-01-01 though comes out as 0000-00-00.
Does anyone have any ideas as to what is causing this?
Then I corrected my colleague's original code as you described and sure enough it now works exactly as expected.
Why it ended up producing 0000-00-00 is still a mystery but once the dissection of the string is done properly it now accepts any date
I'm trying to add both text and a picture filename to an Access database. The actual .jpg file is stored separately in another folder. I want to use a File control in classic ASP to do this. If I create a page for the text fields and a separate page for the File control, everything works fine but the users are confused by having to go to two pages.
Ideally, they would use the Browse button of the File control to select their picture then the picture's filename would be passed down to the "ImageLink" field in the database Insert SQL command. Any ideas?
Here's my two sections of code:
<formaction="marketplaceentryadd.asp"method="post"><!-- Begin data entry table --><tableborder=1cellpadding=3cellspacing=1><tr><tdsize="110"><fontcolor="#FFFFFF">Country:<br/></font></td><td><inputname="txtCountry"type="text"size="50"maxlength="50"/></td></tr><tr><td><fontcolor="#FFFFFF">Description:<br/>(255 char. max)
Numbers only with optional decimal point
</font></td><td><inputname="txtPrice"type="text"size="50"maxlength="50"/></td></tr><tr><td><fontcolor="#FFFFFF">Your Name:<br/></font></td><td><inputname="txtSeller"type="text"size="50"maxlength="50"/></td></tr><tr><td><fontcolor="#FFFFFF">Contact Info:<br/>
(255 char. max)
(255 char. max)
</font></td><td><inputname="txtMoreInfo"type="text"size="50"maxlength="255"/></td></tr><tr><td><fontcolor="#FFFFFF">Picture Filename:<br/>Do not include spaces in the filename<br/>Be sure to include extension (.jpg)</font></td><td><inputname="txtImagelink"type="text"size="50"maxlength="50"/></td></tr><tr><td><inputtype="submit"value="Add Item"/></tr></table></form>
Second page code:
Please select picture to be saved for this item:<br/><br/><FORMmethod="post"encType="multipart/form-data"action="ToFileSystem.asp"><INPUTtype="File"name="File1"><br/><br/><INPUTtype="Submit"value="Upload Picture"></FORM>
We are more than willing to help those that are stuck: but that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for us to do it all for you.
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Start by explaining where you are at the moment, and what the next step in the process is. Then tell us what you have tried to get that next step working, and what happened when you did.
Consider this: just posting your homework question and hoping somebody will give you the answer so you can just tick a multiple choice box is futile. You have no idea if the answer you're given is right or wildly wrong ... and unless you actually learn this stuff you will have no idea at all!
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Now I feel sorry for missing this question. Normalization is one of the things you have to learn, and not just for databases. It will give you more insight into data. Let me stress that again, you want to master this, it is what makes a master.
Can you give me a real life analogy for your abstract question? Otherwise, I'd just have to reply with the rules which you already know.
And BCNF comes after 3NF; if it in 3NF, it not guaranteed to be BCNF, so answer one falls. Leaves you with three. Also, 3NF and BCNF rather close - if you can answer it, you master it.
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I've install SQL Server Express 2014 named instance with mixed mode authentication.
one more SQL Server 2005 version installed with default instance and TCP port has been assigned 1433.
following error occurred
Server Name: .\sqlexpress
Error Number: 18456
Line Number: 65536
-I want to connect locally (with dot) but not able to connect, I also want to connect from outside network
-with static IP still getting the same problem.
following changes I've done
-remove dynamic TCP port from configuration manager ipall
-instead of dynamic port I've place static tcp port 1438 and 1440 both are listening
-try 1434 TCP port but SQL service not able start so I've change into 1438 and 1440.
-and same has been configured from firewall inbound and outbound rule.
--also tried through dbeaver to make connection but following error occurred
SQLEXPRESS,1438 failed. Error: "java.net.UnknownHostException: 184.108.40.206:3390: invalid IPv6 address". Verify the server and instance names and check that no firewall is blocking UDP traffic to port 1434. For SQL Server 2005 or later, verify that the SQL Server Browser Service is running on the host.