Answer Posted / ravi satyadarshi

//1st of all create a directory to store ur external table
CREATE DIRECORY EMP_DIR AS '/FLAT_FILES' ;


// now write the following line of code to create an
external table at that directory

CREATE TABLE OLDEMP(ENO NUMBER,ENAME CHAR(20),DOB DATE,)
ORGANIZATION EXTERNAL
( TYPE ORACLE_LOADER
DEFAULT DIRECTORY EMP_DIR
ACCESS PARAMETERS
(RECORDS DELIMITED BY NEWLINE
BADFILE 'BAD_EMP')
LOGFILE 'LOG_EMP'
FIELDS TERMINATED BY ','
(ENO CHAR , ENAME CHAR DOB CHAR DATE_FORMAT
DATE MASK "DD-MON-YYYY"
)
)
LOCATION ('EMP1.TXT')
)
PARALLEL 5
REJECT LIMIT 200;

In which table collections errors are stored.

2460

---

Explain about normal forms?

1106

---

You have a table with three columns: amount1, amount2, and amount3 in a single row only one of these three columns will have a value and the other two will be null. Write a sql query to retrieve the values from these columns?

1020

---

How can you fix a poorly performing query?

1253

---

The count() function always returns a int value type what should you do if you need to count rows from a query which you know will return a value that is too large for an int value type?

1051

---

Any sample or model question of punjab national bank for deputy manger IT or any sample of PNB.any1 plz do send on

2263

---

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

1063

---

What is data modeling with example?

1059

---

Where is dbms used?

1126

---

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

6630

---

Explain about xml databases?

1115

---

Explain the role of indexing in databases?

1186

---

How is data stored in dbms?

1008

---

What is the database development process?

1266

---

What is the maximum length of an extended property?

1036

---