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  • Autoincrement based on a set of other columns

    - by slack3r
    I have a table Course and every Course has many Resources. Course ========== course_id Resource ========== course_id number I want something like a seperate autoincrement for each course_id. Or, in other words, I want to auto-enumerate the resources for a given course. For example, the resource table could look something like: course_id | number ================== 1 | 1 1 | 2 2 | 1 1 | 3 1 | 4 2 | 2 2 | 3 and so on. I want to do this in SQL, using IBM DB2.

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  • How to use C# to parse a glossary into database?

    - by Yaaqov
    This should be a simple one, but I'm a beginner with C#. Given a glossary list in the following format: aptitude ability, skill, gift, talent aqueous watery arguably maybe, perhaps, possibly, could be How can I parse this, and insert into a database table in the format: TABLE: Term_Glossary ================================================ Term_Name | Term_Definition | ================================================ aptitude | ability, skill, gift, talent | ------------------------------------------------ aqueous | watery | ------------------------------------------------ arguably | maybe, perhaps, possibly, could be| ================================================ Any help would be appreciated - thanks.

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  • Question on XJB

    - by Hima
    I have two tables -- INSTALL_BUILD_RESULTS and BUILD_RESULTS. IBR has a primary key called Install_Build_Id and BR has a primary key called Build_Id. Both are numbers A third table, LINK_BUILD_TO_INSTALL_BUILD is a table simply consisting of the two columns mentioned above, used together as a composite key. How can I write an xjb for these 3 tables.

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  • MySQL counting question

    - by gew
    How do I find out which user entered the most articles and then count how many articles that user entered using PHP & MySQL. Here is my MySQL tables. CREATE TABLE users_articles ( id INT UNSIGNED NOT NULL AUTO_INCREMENT, user_id INT UNSIGNED NOT NULL, title TEXT NOT NULL, acontent LONGTEXT NOT NULL, PRIMARY KEY (id) ); CREATE TABLE users ( user_id INT UNSIGNED NOT NULL AUTO_INCREMENT, username VARCHAR(255) DEFAULT NULL, pass CHAR(40) NOT NULL, PRIMARY KEY (user_id) );

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  • Validation - Data Integrity

    - by Thomas
    A table can only store 10 records in a particular state, 10 users over 30 years for example, the others must be less than 30 years. It is a business rule and as such should be respected. How to ensure that state? Think: multiple users accessing this table.

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  • A SELECT statement for Mysql

    - by Hossein
    I have this table: id,bookmarkID,tagID I want to fetch the top N bookmarkIDs for a given list of tags. Does anyone know a very fast solution for this? the table is quite large(12 million records) I am using MySql

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  • Managing trace files on Sql Server 2005

    - by Sophtware
    I need to manage the trace files for a database on Sql Server 2005 Express Edition. The C2 audit logging is turned on for the database, and the files that it's creating are eating up a lot of space. Can this be done from within Sql Server, or do I need to write a service to monitor these files and take the appropriate actions? I found the [master].[sys].[trace] table with the trace file properties. Does anyone know the meaning of the fields in this table?

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  • SSIS package in SQL Server 2005 can send data to SQL Server 2008?

    - by needshelp
    Hi SSIS Geniuses, I Have an SSIS package in SQL Server 2005 that takes data from a flat file and puts it in a table in SQL Server 2005. Now I want it to send it to an additional location along with the 2005 location. This new table is in SQL Server 2008. Can it be done without porting my SSIS package to SQL Server 2008? Thank you for your help in advance.

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  • Paging in my web page

    - by Jibu P C_Adoor
    Hi, I have a large data set and i have to apply paging on that data set and after that the result set should be another data set. What is the reliable method to achieve that. I have tried with 'PagedDataSource' class but i don't know how it is possible to convert to dataset or data table. In my case i need a general solution. I have to bind to a control like gridview as well as i have to used it with normal html table.

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  • mysql join 3 tables and count

    - by air
    Please look at this image here is 3 tables , and out i want is uid from table1 industry from table 3 of same uid count of fid from table 2 of same uid like in the sample example output will be 2 records Thanks

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  • Entity Framework 4 omits some associations during model generation

    - by kzen
    After creating an EF4 model from a SQL Server database I noticed that all the relationships of my Users table were not imported into the model as associations. All the other relationships were imported fine. My Users table has a PK userId which is a char(7) field and it is integrated into several other tables in the database as an FK but for some reason EF4 does not import these relationships as associations during the model generation process... Does anyone have any ideas why this would be happening?

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  • Fractional y-var in ggplot

    - by Misha
    How can I easily create a fractional y-value when using ggplot? t <- as.factor(test=sample(seq(0,100,10),1000,rep=T)) d <- as.factor(sample(c(0,1),1000,rep=T) p <- data.frame(t,d) My best shot was: ggplot(p,aes(x=t,y=prop.table(table(t,d),1)[,1])) + geom_point() However this doesnt work and I guess there is an easier way around this...

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  • Replace a control on the screen

    - by Rob Bonner
    Hello all, I have an instance of a FlowCoverView (a great library that emulates cover flow on the iPhone). And it works great, with the exception of an update. When I update my table behind the scenes, I have no way of telling this control (that is defined in IB) that it has been updated, and to reload. (much like you can with a table using reloadData) To the question, is there a way to replace a control that is on the screen with another control to force the reload?

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  • mysql command for update

    - by Mac Taylor
    hey guys i need to add a special text to all rows in my mysql table , how to add some text to the end of all rows' content in a table just for one field i used this code : UPDATE `blogs` SET `title`= `title`+ 'mytext'; but didnt work for me

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  • jpa relationship-Google app engine

    - by megala
    I created two tables in google appengine datastore using JPA. Table1: *groupname pk *groupid *groupdesc *emailper Table2: *groupname *memberid *membername My constraint is if i enter data into table2 it check whether group already exists or not in table.If exists than only it store the data into table .How to solve this?

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  • What do you call the concept of dynamic data definition?

    - by DJTripleThreat
    Maybe this is simpler and more straightforward then what I'm thinking but I can't seem to find this concept on google anywhere. The concept is this: You have a table in a database and the table has a specified number of columns. However, it has been asked of me by previous clients that there also be a set of dynamic user defined columns that can be added on the fly. What is this concept called and is it considered a design pattern?

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  • MYSQL and Array with PHP for create Tag Cloud

    - by asilloo
    Hi, I'm trying to make a Tag cloud for every user in own page, I'm using PHP5 and Mysql, My table named "tags" and I want to make a array but in short way. The table like below, The array can be like for user1 array={[car,1],[cat,null],[pen,1],[dvd,1],[cd,null]} Username totaltag tag1 tag2 tag3 tag4 tag5 admin 5 car cat pen dvd cd user1 1 1 1 user2 1 2 12 1 user3 3 2 10 1

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  • mysql insert with auto-increment column

    - by czuroski
    Hello, I am trying to insert data into a mysql table from a csv file. I am using the infile sql command, but I am having trouble because the first column of the table is an id that is set as an auto increment field. what do I have to set my first column value to in order to get this to work, or can I do it at all? Thanks

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  • [Zend Framework] How to format Zend_db Rowset output?

    - by rasouza
    I have a model which is referenced to a table registries extending Zend_Db and some methods which bascially uses fetchAll() all the time. What happens is: my table has a DATE field and I'd like it to output already formated when I call $row-reg_date. Is it possible by doing something in the model or do I have to manually format?

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  • Fetch Products Grouped By Total Sales ?

    - by David
    Hi, I have the following MySQL tables: TABLE: Products ---------------------- id | productname 1030 | xBox 360 1031 | PlayStation 3 1032 | iPod Touche TABLE: Sales ---------------------- productid | saledate 1031 | 2010-06-14 06:30:12 1031 | 2010-06-14 08:54:38 1030 | 2010-06-14 08:58:10 1032 | 2010-06-14 10:12:47 I want to fetch using php the products i sold today and groupe them by sales number and order by sale date (if possible) , example of Output: Today's statistics: -Playstation 3 (2 sales) -Xbox 360 (1 sale) -iPod Touche (1 sale) Thanks

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  • Can I lock tables in an IF statement in MySQL?

    - by MalcomTucker
    This is throwing a syntax error - --from body of a stored proc IF (name = in_name) SET out_id = temp; ELSE LOCK TABLE People WRITE; INSERT INTO People (Name) VALUES (in_name); UNLOCK TABLE; SELECT LAST_INSERT_ID() INTO out_id END IF do I have to lock any tables I need at the start of the SP?

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