• Would foreign keys be necessary to a database design?

    I'm pretty new to database design so I'm trying to figure out how important foreign keys really are for the design. I know they aid the programmer to manipulate data but say the person already knows how to do that. Are they really necessary then? Thanks.

    ITKE352,430 pointsBadges:
  • What’s the best way to store latitude / longitude pairs in a MySQL database?

    I currently have a MySQL database and I'll be doing a bunch of calculations on latitude / longitude pairs. What's the best way to store these in my database? Thanks so much.

    ITKE352,430 pointsBadges:
  • What’s a reasonable length for database fields?

    I've been designing a database table and I'm sorry if this is a stupid question but I need to know how long should a "firstname" be? For common fields (First name, last name and email address), what's a reasonable length for each? Appreciate the help.

    ITKE352,430 pointsBadges:
  • SELECT AND OMIT in RPGILE

    hI,GUYS,Actually select and omit used in lagical file to control the records,values like. But without key field how can i use these select and omit condition in logical file? And one more doubt is what is the exact uses of %SCAN,%SUBST, %SUBDT,%EOF,%CHECK,%COMMIT,%FOUND.Plese explain these

    abhisheka1400 pointsBadges:
  • Checking the version of SQL Server for a database using T-SQL

    Is there a way for me check what version of SQL Server I'm using for a database through T-SQL? Would there be some sort of stored procedure I can use? Thanks.

    ITKE352,430 pointsBadges:
  • Writing a unit test for files with database access

    I'm currently using PHP and Python and I'm trying to figure out how to write a unite test for several of my files. About 75% of my files needs database access so that's where the problem lies. What should I do here?

    ITKE352,430 pointsBadges:
  • What’s the better embedded database: SQLite or MongoDB?

    I've been working on a RSS reader application and I'm looking at several different back end databases to use. I need the database to be embedded because I don't want the users to install a database server. I'm between SQLite and MongoDB. Which one is the better choice?

    ITKE352,430 pointsBadges:
  • How many rows are too much in a MySQL database?

    We have a MySQL InnoDB that has over a million records. Is that too much to hold? Can my database handle that many records? We're curious because some of our queries are slower with a table that has 1,000,000 rows than one with 100 rows.

    ITKE352,430 pointsBadges:
  • Best way to talk to a database using Sinatra

    We're using Sinatra software and we've noticed that it doesn't provide an ORM (unlike Ruby on Rails). So we're trying to figure out how to actually talk to the database in a Sinatra app. Or is it only for apps that don't use a database? Thank you.

    ITKE352,430 pointsBadges:
  • Sequence information of mutltiple subforms in one form?

    I have one form embedded 3 subforms. I need to identify which subform is the top of the form because I need to write out the fields value to CSV in subsequently left top to right bottom as user can see on their PC.

    koseiarai5 pointsBadges:
  • SQL Server database: Checking which locks are held on table

    I know this an older version but I'm using SQL Server 2005 and I'm trying to check what database locks are applied on rows against a query batch. Is there some tool that will help me highlight table row level locking in real time? Appreciate the advice.

    ITKE352,430 pointsBadges:
  • What’s the best MySQL database field type for an URL?

    I've been trying to store an URL in a MySQL database but I'm running into an issue the field. What's the best way to define a field that will hold the URL for an undetermined amount of time. Thanks so much.

    ITKE352,430 pointsBadges:
  • How can I browse a SQLite database in Android

    I'm an Android user and I was wondering if there's a way to browse SQLite databases on my smartphone / view the data in the databases. I've been using SoftTrace but I was wondering if there was a mobile way to do it.

    ITKE352,430 pointsBadges:
  • Creating a new database with MySQL WorkBench

    I'm fairly new to the MySQL universe but I've recently installed MySQL Workbench and now I would like to create a database using it. How can this be done? I've noticed several "MySQL Schemas" being displayed in the Overview tab. Are those the existing datatbases? Thanks so much.

    ITKE352,430 pointsBadges:
  • Character limit for a column in an Oracle database

    I'm looking to store different postal codes in my Oracle database. I believe the column will be a VARCHAR2. I know the U.S. codes are 9 and Canadian codes are 7. Would 32 characters be efficient enough for the limit in the column? Or should I go higher? Thanks!

    ITKE352,430 pointsBadges:
  • Joining tables from a different SQLite database

    In one of my applications, I currently use a SQLite database and it's been working great. But I've been adding new functions and features so I'll need a second database and I'm having trouble with joining tables from a different database. How can I do this?

    ITKE352,430 pointsBadges:
  • MySQL database: Maximum number of records in a table

    For MySQL database, I was wondering what would be the maximum number of records I could add to a table. I was thinking of adding millions of of records to the table but I was wondering if there's a limit. What's the best way to handle this? Thank you.

    ITKE352,430 pointsBadges:
  • How to store images in a MongoDB database

    Would it possible to store images in a MongoDB database rather than just text? Should I create an array of images in the database? If that's possible, can I do the same for videos?

    ITKE352,430 pointsBadges:
  • Deleting all records from a database in a Ruby on Rails application

    How would I be able to delete all of my records, in one of my database tables on a Ruby on Rails application. I'm looking for a way not to do it through SQL.

    ITKE352,430 pointsBadges:
  • How can we store hours and minutes in a SQL Server database?

    My partner and I would like to store times in our SQL Server database but we only need to store hours and minutes. We already know we could use "DATETIME" and ignore the rest of the data but is there an easier way to do this? Thanks so much.

    ITKE352,430 pointsBadges:

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