Click here to Skip to main content
15,898,657 members
Home / Discussions / Database
   

Database

 
Questionhow to create a database if data is given? Pin
Member 1127090223-Oct-15 6:00
Member 1127090223-Oct-15 6:00 
AnswerRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 6:29
professionalEddy Vluggen23-Oct-15 6:29 
GeneralRe: how to create a database if data is given? Pin
Member 1127090223-Oct-15 7:02
Member 1127090223-Oct-15 7:02 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 7:17
professionalEddy Vluggen23-Oct-15 7:17 
GeneralRe: how to create a database if data is given? Pin
Member 1127090223-Oct-15 7:28
Member 1127090223-Oct-15 7:28 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 8:08
professionalEddy Vluggen23-Oct-15 8:08 
GeneralRe: how to create a database if data is given? Pin
Member 1127090223-Oct-15 8:25
Member 1127090223-Oct-15 8:25 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 8:31
professionalEddy Vluggen23-Oct-15 8:31 
GeneralRe: how to create a database if data is given? Pin
Member 1127090223-Oct-15 8:49
Member 1127090223-Oct-15 8:49 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 8:55
professionalEddy Vluggen23-Oct-15 8:55 
GeneralRe: how to create a database if data is given? Pin
Member 1127090223-Oct-15 9:02
Member 1127090223-Oct-15 9:02 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 9:14
professionalEddy Vluggen23-Oct-15 9:14 
GeneralRe: how to create a database if data is given? Pin
Member 1127090223-Oct-15 9:20
Member 1127090223-Oct-15 9:20 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 9:48
professionalEddy Vluggen23-Oct-15 9:48 
GeneralRe: how to create a database if data is given? Pin
Member 1127090223-Oct-15 18:47
Member 1127090223-Oct-15 18:47 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen23-Oct-15 23:22
professionalEddy Vluggen23-Oct-15 23:22 
GeneralRe: how to create a database if data is given? Pin
Member 1127090216-Nov-15 23:41
Member 1127090216-Nov-15 23:41 
GeneralRe: how to create a database if data is given? Pin
Eddy Vluggen17-Nov-15 0:46
professionalEddy Vluggen17-Nov-15 0:46 
QuestionAmazon RDS IP Address Pin
R. Giskard Reventlov21-Oct-15 5:21
R. Giskard Reventlov21-Oct-15 5:21 
SuggestionRe: Amazon RDS IP Address Pin
Kornfeld Eliyahu Peter21-Oct-15 8:50
professionalKornfeld Eliyahu Peter21-Oct-15 8:50 
GeneralRe: Amazon RDS IP Address Pin
R. Giskard Reventlov21-Oct-15 9:09
R. Giskard Reventlov21-Oct-15 9:09 
QuestionValidating data between RDBMS (Mysql/ Oracle / DB2) and Hadoop ( HDFS/ Hive) Pin
Member 1204409721-Oct-15 4:14
Member 1204409721-Oct-15 4:14 
I have got this assignment question on database. Not getting any idea of how to solve this. Can anyone please help me ?
========================================================
“Mr. A” and “Mr. B” data warehousing experts working for “XYZ” company, currently they are developing ETL-Validator framework for big-data technology i.e. Validating data between RDBMS (Mysql/ Oracle / DB2) and Hadoop ( HDFS/ Hive).
Source database (RDBMS) constains millions of records and all the records from source are already migrated to target database (Hadoop - Hive).
They need your help in implementing following scenario's

A. Column Level comparision between source and Target Database (i.e. Comparing each column of source Database with each column of Target Database ) .
Now your task is to :
1. Assume suitable database on source side and design table structure(student / retail banking /telecommunication / insurance , any other) for the same having atleast ten columns.
2. Assuming that buffer size = 500, propose efficient strategy to reduce the number of comparision between source and target columns records.
3. Write SQL query for the solution proposed in step#2.
4. Draw query tree for the query of step#3.
5. Write psudo code or program ( Java / C# ) for proposed solution in step#2 and step #3.

B. As foreign key constraint in not implemented in Target Database (Hadoop – Hive ) , implement foreign key validator for target database.
1. Assuming that table used in #A.1 is already present in target DB, now construct one more table on target side which references to primary key of table used in #A.1
2. Assuming that buffer size=500, propose efficient strategy with min. Comparision to validate foreign key constraint.
==============================================================
AnswerRe: Validating data between RDBMS (Mysql/ Oracle / DB2) and Hadoop ( HDFS/ Hive) Pin
Richard Deeming21-Oct-15 8:12
mveRichard Deeming21-Oct-15 8:12 
QuestionSchema update using SQL Server Data Tools Pin
indian14319-Oct-15 12:15
indian14319-Oct-15 12:15 
AnswerRe: Schema update using SQL Server Data Tools Pin
Mycroft Holmes19-Oct-15 14:35
professionalMycroft Holmes19-Oct-15 14:35 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.