Interested to Buy Any Domain ? << Click Here >> for more details...
How do you implement one-to-one, one-to-many and many-to-
many relationships while designing tables?
- 1 Answers
- 10045 Views
- Flextronics, Hexaware, SQL Star, I also Faced
- E-Mail Answers
Answer Posted / ramesh
One to one
Parent Entity does have one Corresponding record in Child
Entity
ex : Employee and his CV
One to many
Parent Entity does have many Corresponding records in Child
Entity
ex : Employee and his Projects
many to many
Parent Entity records do have many Corresponding records in
Child Entity vice versa
ex : Employees and Employers
Employees Receive Calls from Many Employers
Employers Receive CVs from Many Employees
| Is This Answer Correct ? | 12 Yes | 6 No |
Post New Answer View All Answers
What is a database development?
To convert IDMS to DB2, how to deal with IDMS occurs and redefined clause?
Hi my program is accesing data from two db2 databases.what is the bind card for this program to genarate plan? how to specify the two owners and two qualifiers in bind card
Explain the role of indexing in databases?
Write short notes on manual refreshes.
I HAVE A PI ON COL A THE NEXT DAY I WANT CHANGE THE PI ON COL B? PLS SEND ME THE ANS
What are data modelling techniques?
A) Which two are benefits of Teradata's support for ANSI Standard SQL? (Choose two.) 1.data is distributed automatically 2.queries get optimized to better plans 3.submit queries from other database systems 4.can interface with BI tools B) Which statement is true when comparing the advantages of third normal form to star schema? 1.Star schema tends to have fewer entities. 2.Star schema requires additional data storage. 3.Third normal form tends to have fewer entities. 4.Third normal form requires additional data storage. C)Which two sets of functions does the Parsing Engine (PE) perform? (Select two.) 1.sorting, formatting, and aggregating of the final answer set 2.flow control of the data to and from the participating tables 3.SQL statement interpretation, syntax validation, and semantic evaluation 4.dispatching the step execution sequence to the AMP via the BYNET D) Which two can be achieved with Teradata Active System Management (TASM)? (Choose two.) 1.disable hardware 2.react to hardware failure 3.influence response times 4.collect metadata E) Which three mechanisms can be used to ensure security within the Teradata Database? (Choose three.) 1.views 2.spool limits 3.roles 4.access rights 5.profiles
Can an extended stored procedure be called from inside a user-defined function?
How you can make a parameterized view?
How would you design a database for an online site, which would average a million hits a day?
Explain about post-relational databases?
Explain what a database is?
State the acid rules?
What is the maximum length of an extended property?
