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• Need recommendation for a table structure

  - by yapiskan

  I have an entity which has 4 different types of property that could have only one value for each case which are boolean, decimal, string or text. I don't want to define the table with 4 boolean, decimal, nvarchar and ntext columns. What would you recommend to cover this case?

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• How to get an array size

  - by John Doe

  I'd like to know how to get an array rows & columns size. For instance it would be something like this: int matrix[][] = { { 2, 3 , 4}, { 1, 5, 3 } } The size of this one would be 2 x 3. How can I calculate this without including other libraries but stdio or stdlib?

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• Lucene MultiFieldQueryParser which column of the three generated the hit

  - by user549432

  I am using Lucene MultiFieldQueryParser and the implementation is as shown below QueryParser parser = new MultiFieldQueryParser (Version.LUCENE_30,new String[] {"First Name","Middle Name","Last Name"}, standardAnalyzer); Query query = parser.parse(queryString); and using it to find a match for the input string in my DB columns First Name, Middle Name and Last name . I am able to get the hits with normal search and fuzzy search - The only problem I am facing is finding which column of the three generated the hit - Can you pls help me here - Thanks

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• ListView: Display data divided into groups?

  - by jawonlee

  I would like to display the contents of a DataTable, divided into several groups depending on the value of one of the columns. So, if I have a DataTable (from SQL query) with: GroupID Name Description 1 foo bar 1 one two 2 some thing I would like to place all records containing GroupID 1 in one div, all records with GroupID 2 in another div, and so on. How can I do this? I'm writing in ASP.NET 4.0, with C# codebehind.

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• how to select the records whose several fields' combination will equal to a specific value

  - by poiu2000

  Hi all, Assume I have the following style table, col1 col2 and col3 have same value scopes, I want to select the records when two of the 3 columns have a value combination such as ('ab' and 'bc'), in the following example, the first 3 records should be selected. Any good way to do this? I am using Sybase. | id | col1 | col2 | col3 | 1 ab bc null 2 null ab bc 3 ab ab bc 4 de ab xy Thanks.

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• i want to add a column in my table

  - by Abid

  there is already some columns added in my table starsin.. i want to add a column address in my table starsin by using a query..

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• how to use fillWeight property and yet enable horizontal scrolling

  - by GreatWorld

  I have a few columns in a dataGridView want them to fill the space. column A has a fixed width column B can be long and scrolling should be possible column C is fixed- unresizeable, and minimum width is set. what is the way to use these property for achieving the desired behavior

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• When to use reflection to convert datarow to an object

  - by Daniel McNulty

  I'm in a situation now were I need to convert a datarow I've fetched from a query into a new instance of an object. I can do the obvious looping through columns and 'manually' assign these to properties of the object - or I can look into reflection such as this: http://www.codeproject.com/Articles/11914/Using-Reflection-to-convert-DataRows-to-objects-or What would I base the decision on? Just scalability??

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• Count if with two criteria excel vba

  - by Manasa J

  can some one help me create a macro for the following Data.The values in GradeA,GradeB etc.. columns need to be populated by checking sheet1 ColumnB(Student Name) and columnH(Grade).I need both row wise and Column wise total. Student GradeA GradeB GradeC GradeD GradeE GrandTotal Std1 1 0 2 0 0 3 Std2 0 0 0 1 1 2 Std3 1 0 1 0 0 2 Std4 0 2 0 3 0 5 Std5 0 1 2 1 0 4 Std6 1 0 2 0 2 5 Grnd 3 3 7 5 3 21

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• SQL Query to return both distinct and total logins from a login table in sql2005

  - by Prescott

  Hey all, I have a table Logins { Id, AccessTime }, I'd like to write a query that returns 3 columns, Total Logins during a time period, Unique Logins for a time period, and the Id of the user. I know I could do this with two passes and a join, is there a better way to do it in a single pass? Thanks, ~P

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• How to use another type of EditingControl in a single .NET 3.5 DataGridView column ?

  - by too

  Is this possible to have two (or more) different kinds of cells to be displayed interchangeably in single column of C# .Net 3.5 WinForms DataGridView? I know one column has specified single EditingControl type, yet I think grid is flexible enough to do some tricks, I may think of only: Adding as many invisible columns to grid as required types of cells and on CellBeginEdit somehow exchange current cell with other column's cell Creating custom column and custom cell with possibility of changing EditingControl for single cell Which approach is better, is there any other solution, are there any examples ?

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• Cloning the datatable to datagridview does not copying the records to datagridview.

  - by Harikrishna

  I am copy the datatable records to datagridview to dispaly those records Datagridview1.DataSource=dataTable1.Clone(); But only columns are copied not records,what the problem can be ?

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• Where is all_nested_table_cols in 9i?

  - by thecoop

  Oracle 9i has nested tables, however it doesn't have the all_nested_table_cols sysview (like 10g and 11g) which lets me see what the columns are for these nested tables. How can I find this information on a 9i database?

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• Convert bit to boolean string in HyperLinkField.DataNavigateUrlFormatString

  - by abatishchev

  I have a asp:GridView with a HyperLinkField. It's DataNavigateUrlFormatString property is set to View.aspx?id={0}&isTechnical={1} Select command of appropriate SqlDataSource returns columns of type INT and BIT (from SQL Server 2008). So displayed string becomes something like View.aspx?id=1&isTechnical=1. But I want to display isTechnical=true|False, i.e. Convert.ToBoolean(row["isTechnical"]).ToString().ToLowerInvariant(). How to implement such conversion in page markup?

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• How to get the top most parent in PostgreSQL

  - by wereach

  I have a tree structure table with columns: id,parent,name. Given a tree A-B-C, how could i get the most top parent A's ID according to C's ID? Especially how to write SQL with "with recursive"? Thanks!

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• Item of one combobox should not come into the other

  - by syedsaleemss

  Im using c# .net windows form application. I have a database with some tables.I have two comboboxes (A & B). I have populated a combo box A with column names of a table using sys.columns. Now when i select an item in combo box A ,combo box B should be populated with the same items except the selected item which was selected in combobox A .

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• SQL Query Question - Select * from view or Select col1,col2.....from view

  - by Napco

  We are using SQL2005 but this question can be for any rdbms. Which is more efficient, when selecting all columns from a view Select * from view or Select col1,col2.....from view

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• How to query by recent date and value in SQL?

  - by wsb3383

  I have a table with three columns: patient_id, obs_date, and weight_val. patient_id stores patient identification #, weight_val stores a weight value, and obs_date stores the date when the weight reading was taken. So, a patient can have many different weight readings at different dates. How do you write a query for: select all patients whose last weight reading is 120?

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• Youtube Table structures

  - by Shyju

  Can anyone share me how does youtube stored video related information in there tables ? What would be the table structure and what would be the various columns in tables and the relations between them ? Thanks in advance

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• Query on Vertical partitioning in Sybase

  - by Sairam

  hi, Am working with sybase.In that i have a table A of some 2 million records containing some columns which i want to move out and make it as a separate table B. I have some questions in this process... 1. I have decided to use vertical partitioning.Is that ok? 2.Or what other technique can i go about using in this process? Please provide your valuable inputs in this. Thanks.

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• Symfony: how would you reverse the "notnull:true" in a schema of a plugin?

  - by user248959

  Hi, sfGuardUser model of sfDoctrineGuardPlugin is defined this way: sfGuardUser: actAs: [Timestampable] columns: id: type: integer(4) primary: true autoincrement: true username: type: string(128) notnull: true unique: true As you can see 'username' has the feature "notnull:true". Now i want to create a register form that is not using 'username' but the email address of the user. When a user wants to register, it is showed this: Validation failed in class sfGuardUser 1 field had validation error: * 1 validator failed on username (notnull) Any idea? Javi

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• ms-access: report that displays records only within a certain date

  - by every_answer_gets_a_point

  i have a very simple report that is generated from just one table. one of the columns in the table is a date. i need to be able to allow the user of the report to enter a range of dates and display data only between those dates. how do i do this?

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• javascript validation: comparing 2 text box values

  - by coure06

  I have a table with 5 rows and 2 columns. Each cell contains a text box. I want to show error if one of the text boxes in each column is empty. I want both text boxes in a row shld be filled or both shld empty. How can i do this via Asp.net validation controls?

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• How do I use ST_Contains in following case?

  - by Z77

  I have two tables. First with points, and second with polygons. I need to find out which points are in required polygon according to the attribute gid. Using query: SELECT table1.* FROM table1, table2 WHERE table2.gid=1 AND ST_Contains(table2.geom2, table1.geom1); What I get is empty table (only columns without data)... Tnx

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• wxGrid different cursor

  - by snorlaks

  Hello, Im using wxGrid which has 3 columns. I would like cursor to be differen (Hand) when mous is over cells from 2 and 3 column. How can I do that ? Thanks for help

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