Answer Posted / sushant more (sybase dba)

CREATE TABLE EMPLOYEE(

[EMPLOYEE_ID] INT PRIMARY KEY,

[NAME] NVARCHAR(50),

[MANAGER_ID] INT

)

GO

INSERT INTO EMPLOYEE VALUES(101,'Mary',102)

INSERT INTO EMPLOYEE VALUES(102,'Ravi',NULL)

INSERT INTO EMPLOYEE VALUES(103,'Raj',102)

INSERT INTO EMPLOYEE VALUES(104,'Pete',103)

INSERT INTO EMPLOYEE VALUES(105,'Prasad',103)

INSERT INTO EMPLOYEE VALUES(106,'Ben',103)


select e1.NAME from EMPLOYEE e1,EMPLOYEE e2
where e1.EMPLOYEE_ID = e2.MANAGER_ID

You are testing the performance of a query the first time you run the query, the performance is slow. the second time you run the query, the performance is fast. why is this?

907

---

What is database design and development?

958

---

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

6533

---

What are the key features of dbms?

947

---

Which four data types cannot be used as a return type from a user-defined function?

973

---

Explain about network model?

955

---

In which database can extended stored procedures be added?

864

---

Explain about xml databases?

1011

---

I have a few records all are same structures data, I want to store data in multiple targets how

2597

---

There is a trigger defined for INSERT operations on a table, in an OLTP system. The trigger is written to instantiate a COM object and pass the newly insterted rows to it for some custom processing. What do you think of this implementation? Can this be implemented better?

2364

---

explain detail about ftp in datastage?

2190

---

Write short notes on manual refreshes.

2687

---

You have two tables with a one to many join based on a field named id. You need to find records in the parent table that are not represented in the child table. how would you accomplish this?

1013

---

Where is dbms used?

1019

---

Pgm A calls Pgm B and pgm B uses cursor, when pgm B is called second time, the program is abending saying the cursor is opened? Why?

2376

---