> Cannot Set
> Cannot Set Data For The Input Field Null
Cannot Set Data For The Input Field Null
Eric Howe Jul 11, 2009 at 3:56 PM 6 Comments @Ben,I'm not talking about dates in particular, I'm talking about NULL in general.For example: say you have a blog/article/page/... Mitch Lockhart Apr 18, 2007 at 3:35 PM 1 Comments Storing a NULL value should save space over storing a string of zero length. So i'd like to see answers where opion about this is backed by some logical and/or technical reasons. using empty strings.My POINT is that using NULLs makes things less convenient! useful reference
up vote 28 down vote favorite 5 I have a table in MySQL that have a few columns that have default values specified, but when I try to insert a row, Please advise.Thank you so much for any input you may have.-AJ Christoph Schmitz Aug 17, 2007 at 3:25 AM 26 Comments Hi AJ,that problem arises from putting blank values where a He also compares to the empty string != '', which is good - something that I forget to do occasionally. Why use NULLs if they take additional space and mean exactly the same as empty strings? http://eai.ittoolbox.com/groups/technical-functional/webmethods-l/not-able-to-run-jdbc-insert-adapter-service-in-webmethods-developer-3412751
Error case. But I'm a chinese. Using your same logic I can give you hundred of examples that will make starters to think that it is bad to use int, char, nvarchar, uniqueidentifiers and so on.
This person assigned those uses for that particular system and they apply only to that system.For this reason, I think the original article is dead-on in that there should only be In general, databases survive longer than the applications for which they were built. What was Stan Lee's character reading on the bus in Doctor Strange Do humans have an obligation to prevent animal on animal violence? Almost always the database gets used outside of the application for which it was designed.
Ben Nadel Aug 17, 2007 at 7:24 AM 12,905 Comments Ooops, I didn't see Chris's post... An example of where "" might be a valid value, separate to NULL could be a person's middle name. Why does low frequency RFID have a short read range? http://stackoverflow.com/questions/2109322/cant-set-hidden-input-fields-value-using-jquery This is, honestly, a recipe for problems; complex joins, business-critical understanding of table relationships - there's a reason that companies have DBA and pre-compiled reports (or applications that are built just
If strict mode is not enabled, MySQL sets the column to the implicit default value for the column data type. For instance, suppose we have a contact form with firstname, lastname and emailaddress. While someone else may WANT to store the '0000-00-00' but not the empty string as NULL. You are attempting to make your own magic value to represent what fundamentally already exists in every database: a concept to represent an absence of a value.
So, basically you are saying that the user is not allowed to leave that blank. useful source You turn around and "No problem, I will find you all the middle initialials that are NULL. You cannot get rid of it, unless you make all fields of all types required. If all empty strings would get converted to null, how could you ever save an empty string to DB?
a kludge)or you neglect referential integrity.How about a simple user or user-group based ACL. see here Andrew Bauer Jul 19, 2009 at 6:29 PM 53 Comments @Ben,I use an archive database and delete triggers for soft deletes and have found that it has 3 prominent advantages, it NULLs complicate length checks for length and for LIKE'ness. I just explained my interpretation of "no value".
share|improve this answer answered Nov 25 '13 at 5:14 Chintan Khetiya 9,29263071 add a comment| up vote 1 down vote The problem is that you haven't got any element with the Locoluis Oct 7, 2010 at 9:40 AM 1 Comments For me, the difference between NULL and an empty string is fully meaningful.I often use NULL for values that the user couldn't Is one bit that much to ask of a DBMS? http://fortecrm.net/cannot-set/cannot-set-data-for-the-input-field-webmethods.html Ben, do you know how to do this? "Sure thing boss, I will just grab all records whose SSN field has a ZERO length.""Perfect, another client is satisfied, we have saved
See Section 12.3.5, “Automatic Initialization and Updating for TIMESTAMP and DATETIME”.
What is the temperature of the brakes after a typical landing? If you return a NULL value it didn't meet the REQUIRED attributes, right?I'm not just referring to the FAX number alone. So i'm against letting AR do this automatically. Ok, thank you for explanation. 0 Back to top of the page up there ^ #7 youngestlinton Newbie Group: Members Posts: 1 Joined: 07-June 10 Posted 07 June 2010 -
It's like storing a string value of 'NULL' or 'BLANK', and having developers assume that it's null or a empty string. Total distance traveled when visiting all rational numbers Operator ASCII art Are there continuous functions for which the epsilon-delta property doesn't hold? I've seen many posts claiming that sometimes it's good to use empty string along with real values and NULLs, but so far haven't seen a scenario that would be logical (in http://fortecrm.net/cannot-set/cannot-set-int-field-to-java-lang-integer.html To me there is no good reason to store SQL NULL.
So useful in fact, that I put it in its own class so I can access it from various models. All is good. But for me as a human, NULL is easier to process when looking at the data. The webMethods group is no longer active. 3412751 Related Discussions Error: ADA.1.314 - Cannot set data for the input field...For input string: "30 00:00:00.0" Issue with the webMethods 7.1.2 JDBC adapter
Not true. In my situation, when a user creates an account for Classifieds, they have an option to add their company info as well (see this link http://www.naperlist.com/accountcreate.cfm ) if they choose not Thus, the additional space is so tiny as to be irrelevant. Is there any logical scenario in which an empty string '' could be such a good carrier of important information (besides value and no value), which would be troublesome/inefficient to store
Ben Nadel Aug 21, 2007 at 5:03 PM 12,905 Comments @John,NULL values do have a time and a place. No developer that comes later would ever expect that empty strings would be used to represent "no email address". –Thomas Aug 8 '12 at 15:51 add a comment| up vote 6 Any date column that could potentially be NULL would probably not be a good candidate for a uniqueness constraint. You ~could~ use an empty string as a fact of some form field not being entered.
It's your choice as a developer whether you will use them or ignore them.The best thing about nulls is that you can use them however you want. You don't "need" NULL. Developer at SmartEtailing Senior Developer at SmartEtailing ColdFusion Developer Needed at New Jersey Citizen Action Oil Group Searching for tech jobs? It gives you two empties instead of one.
The cost of switching to electric cars? Join Honeypot! You will see some companyName that are blank. An empty string is not a valid email address!
Then it will refer to all the inputs of that type and the given class name: $("input[type='text'].formData").val("data") share|improve this answer answered Feb 20 '15 at 9:52 MItrajyoti Kusari 497 add a