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Re: How to make an Iphone App? 1 Month Ago by jonathannweyer … when planning an iOS app is the hardware and software constraints specific to Apple’s ecosystem, like limited background tasking or… constraints 18 Years Ago by mrjoli021 I am trying to do some constraints on a database. Since I dont have the object explorer option. What is the command line syntax for a constraint constraints 17 Years Ago by farifari hi,, can anyone tell me how to use constraints in VB.net,,, like i mean to say if i … Re: constraints 17 Years Ago by Geek-Master are you using the command line tool OSQL? Re: constraints 17 Years Ago by ptaylor965 If you are using number then the NumberUpDown control can be used as it has a property for min and max allowed plus it only allows numbers If you are using textboxes then you will have to check the value entered in the OnLeave sub Re: constraints 17 Years Ago by farifari can you plz send me the detail or code for that,, coz i m really sorry to understand wat u mean?????? Re: constraints 17 Years Ago by ptaylor965 OK For a NumberUpDown box in the Properties screen (Lower Right) you can set a value called Maximum and Minimum or do it in code[CODE]numWidth.Maximum = 20 numWidth.Minimum = 5[/CODE] This will stop the person setting it passed the range For a textbox you will have to handle this in code[CODE]Private Sub txtWidth_Leave(ByVal sender As … Help Understanding Constraints 16 Years Ago by dakoris73 … some of the examples I've seen, they have these constraints included, but everywhere I look, there's hardly any specific… info on HOW to use these constraints. Any help in clearing this fog in my mind about… Re: Help Understanding Constraints 16 Years Ago by tesuji …. Given the following create-table statement we can detect several constraints: create table raint(id integer UNIQUE, NOT NULL, day char… mere simple example of a possible application. Much more powerful constraints can be programmed by using the trigger concept for what… How to get Unique columns and Primary key constraints using SqlConnection.GetSchema() 15 Years Ago by waleed_cs2000 hi I have some code of ADO.net to dynamically detect the database schema, [B]what I need is how to get Unique columns constraints and Primary key constraints using SqlConnection GetSchema() method.[/B] thanks Help With Identification of Physical Constraints Associated With a Range of Networks? 19 Years Ago by SarahA [LEFT]Hi everybody,[/LEFT] [LEFT]I need some help identifying and explaning any physical constraints associated with a range of network options ?[/LEFT] Can anybody help me ? Thanks :cool: X Applying Constraints after creating a table. 17 Years Ago by ChaseVoid I would like to know how to apply Constraints after creating a table. I was just practicing and creating … find number of constraints in a table. 15 Years Ago by homeryansta hello all! Anyone know how to count all the constraints in a given table? I'm new to stored procedure and need it to finish some work. Re: find number of constraints in a table. 15 Years Ago by tesuji Well, primary key, foreign key, not null, unique, check clause, also sometimes triggers etc. are or may define constraints. So which of them are meant? -- tesu Re: find number of constraints in a table. 15 Years Ago by homeryansta [QUOTE=tesuji;1248479]Well, primary key, foreign key, not null, unique, check clause, also sometimes triggers etc. are or may define constraints. So which of them are meant? -- tesu[/QUOTE] Every single one of them. Re: find number of constraints in a table. 15 Years Ago by homeryansta … is, How do you count the number of rows with constraints in a table. However, I've figured out a way… dropping unnamed constraints 14 Years Ago by raephel Please let me know how to drop constraints within a table having no names. :-/ What are the Constraints on these methods 12 Years Ago by Huck44 What are the constraints on the argument values of these two methods, and explain … constraints 17 Years Ago by nimesh2402 hi...c#.net i'declared 2 major columns as primary key...though i m able to insert duplicate entry... i'm using vs-2003 and sql-client object to do so.... i've taken support of mcad-book..... Constraints 15 Years Ago by alkeshtech Hi guys, I am creating a university database, where student can take sections and courses have prerequisites. I have to make sure that when user takes a section, he has met all the prerequisites for that course he is signing up for. And, when a course is deleted from the database, i have to make sure that the course to be deleted doesn't have any … Re: Constraints 15 Years Ago by urtrivedi create relation in requires table. both column will take value from course table. do not allow casacade update or delete to protect related data from deleting. Re: Constraints 15 Years Ago by alkeshtech Yep that will work, but how do I check that a student has met all prerequisites when he wants to take a course? Re: Constraints 15 Years Ago by d5e5 Where in your schema do you record the fact that the student is taking, or has taken some courses? I think you need a table that has a one-many relation associating each student to courses that student is taking or has taken. StudentCourses ([U]studentid[/U], [U]courseid[/U], date_completed) Re: Constraints 15 Years Ago by alkeshtech Yes, I have that table. Re: Foreign Key Constraints not applied? 14 Years Ago by hielo … you meant MyISAM, which does NOT support constraints. All the tables involved in the relationship constraints will need the InnoDB storage engine. Re: Check Constraints 13 Years Ago by hfx642 … to already be valid for the constraints to work. It is better to put your constraints on when you create the table… Re: JTextField Constraints 17 Years Ago by NycNessyness … that please. I don't know how to set up constraints at all. I don't really need it for what… Re: How to get Unique columns and Primary key constraints using SqlConnection.GetSchema() 15 Years Ago by kvprajapati Welcome waleed_cs2000, GetSchema() Method return a DataTable instance. Use "IndexColumns" argument to list the primary key meta info. [CODE=C#] var lst = dc.Connection.GetSchema("IndexColumns") ; [/CODE] Re: How to get Unique columns and Primary key constraints using SqlConnection.GetSchema() 15 Years Ago by waleed_cs2000 [QUOTE=adatapost;917116]Welcome waleed_cs2000, GetSchema() Method return a DataTable instance. Use "IndexColumns" argument to list the primary key meta info. [CODE=C#] var lst = dc.Connection.GetSchema("IndexColumns") ; [/CODE][/QUOTE] thanks a lot , that helped me, but is there any way to differntiate unique … Re: Help With Identification of Physical Constraints Associated With a Range of Networks? 19 Years Ago by SarahA If this isn't the kind of forum that can help me, can you point me in the direction of one that can please? Thanks X