How can I copy the stucture of a table to a text file.

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Create table ABC as (select * from XYZ where 1=2)

krishnaindia2007

 Profile Answers by krishnaindia2007 Questions by krishnaindia2007

• Jun 21st, 2008

You can copy the definition of objects to text file using dmbs_metadata package.This is the query to copy emp table definition to text file.spool textfilenameselect dbms_metadata.get_ddl('TABLE','EMP','CMSJAN') from dual;spool off;

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How to create table emp1 based on emp, except comm column?

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

CREATE TABLE emp1 AS (SELECT empno, ename, hiredate, s

nathsambu

 Profile Answers by nathsambu Questions by nathsambu

• Dec 19th, 2008

Create table emp1 as select * from emp;

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How to secure SQL scripts so that they cannot be seen by others but can only be executed.

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Create a view and give the permission for select only

rahul kiran

 Profile Answers by rahul kiran Questions by rahul kiran

• May 16th, 2009

Create a view and remove all the privilages except select on that view

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How to count the number of constraints on a given table?

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Select count(constraint_name) from user_constraints where table_name=TABLENAME

itoradeveloper

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• Jan 6th, 2010

Select count(constraint_name) from user_constraints where table_name='TABLENAME'

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..........

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

SQL is a language to insert update delete the record where oracle is a database

vijaypati

 Profile Answers by vijaypati Questions by vijaypati

• Mar 3rd, 2010

SQL stands for Structured Query Language. SQL is used for accessing and manipulating databases. SQL can execute queries against a database. SQL can Retrive, insert, update & delete from ...

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How Create Index in Oracle? explain with example

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Create index cr_ind on student(sid);
here i have created a index on student table on column sid

prashant.baranwal

 Profile Answers by prashant.baranwal Questions by prashant.baranwal

• Sep 16th, 2010

The CREATE INDEX statement is used to create indexes in tables. Indexes allow the database application to find data fast; without reading the whole table. CREATE INDEX index_name ON table_name (c...

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sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Select * from hello h where 1=(select count(discnt amt) from hello where h.amt

nirmal1in

 Profile Answers by nirmal1in Questions by nirmal1in

• Dec 25th, 2010

Say for example below are data exist on EMP tableEMPNO  EMPNAME                DEPTNO      ...

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sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Create table emp as select * from student where 1=2;

Satish Kopalle

 Profile Answers by Satish Kopalle Questions by Satish Kopalle

• Jun 7th, 2011

select * from faculty where rownum=0;

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How data is stored in database?

sampra

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• Mar 6th, 2012

All data are stored in o and 1 format means binary form

anjali

• Jul 28th, 2011

All data are stored in o and 1 format means binary form

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Semicolon ' ; '

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Semicolon

C.A.MURALI MOHAN

• Feb 28th, 2006

By using semicolon we can terminate the query.

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sampra

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• Mar 6th, 2012

Cluster index stores the data ordering wise Ascendingly.
suppose u have inserted the data started on A,B, and D and now if any person will enter the data started from C then the entries for D data would be changed to next locations

It would changes the whole structure of the tabel

Sanjay Agrawal

• May 30th, 2006

Cluster index just changes the whole physical structure of the Tablethe data of table is stored in the data pages they are 8 kb pages.Cluster index stores the data ordering wise Ascendingly.suppose u ...

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sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Select salry from Hello h where 1=(select count (distinct salry) from hello where h.salry

maqsood

• Jul 10th, 2006

Select last_name from employeesWhere rownum

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sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Select * from emp where rowid=(select max(rowid) from emp);

ANURAG PURANIK

• Jul 29th, 2006

Select *  from emp where rowid=(select max(rowid) from emp);

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Read Best Answer

Editorial / Best Answer

muralir02  

 Profile Answers by muralir02 Questions by muralir02

• Member Since Mar-2006 | Mar 20th, 2006

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select max(sal) from emp where sal<(select max(sal) from emp);

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Select salry from Hello h where 2=(select count (distinct salry) from hello where h.salry

srivathson

• Feb 20th, 2012

Code
 

Improve Answer

display the 5th lowest sal from emp table using Correlated subquery

sampra

 Profile Answers by sampra Questions by sampra

• Mar 6th, 2012

Select * from Hello h where 5=(select count (distinct amt) from hello where h.amt>amt)

This will give the 5th record from lowest

srikanth.cherukupalli

 Profile Answers by srikanth.cherukupalli Questions by srikanth.cherukupalli

• Mar 1st, 2012

Select rank,salary from (select rownum as rank, salary from (select distinct(salary) from emp order by salary)) where rank=5;

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Hi Friends, One table having some many records but I want to retrieve under little-bit records randomly. If it is possible in SQL then send the reply ? So, I will wait for ur valuable answer...

Balapradeep Reddy

 Profile Answers by Balapradeep Reddy Questions by Balapradeep Reddy

• Feb 14th, 2012

Code
 

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ashok panguluri

• Feb 11th, 2012

Primary key: The key which is unique and not allow the null values nothing but primary key. Each table contain only one primary key.

Candidate key: The key which is opt for the primary key is nothing but candidate key, the table can contain number of candidate key as per requirement.

srikanth.cherukupalli

 Profile Answers by srikanth.cherukupalli Questions by srikanth.cherukupalli

• Jan 12th, 2012

Primary key defines the uniqueness of a row. there should be no null value in primary key. The keys which are opt for primary key known as candidate keys. In a table candidate keys are the candidates...

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How many Primary keys and Primary Indexes can we create on a table.How many Foreign keys and Secondary indexes can we create on a table.How many maximum columns can we create in a table

ASHOK PANGULURI

• Feb 11th, 2012

Every table can contain only one primary key, automatically ONE primary index also created.

Multiple foreign keys are containable in a table depending upon the relations of other table. No foreign key indexes are automatically created.

srikanth.cherukupalli

 Profile Answers by srikanth.cherukupalli Questions by srikanth.cherukupalli

• Jan 12th, 2012

Maximum one primary key and one primary index
foreign key depends on the primary key. You cannot create many to one relationship between pk and fk.
There are maximum 1000 columns we can create in a table.

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How to write a query in SQL 2005 in order to Select 10 random records from table?

ASHOK PANGULURI

• Feb 11th, 2012

Code
 

srikanth.cherukupalli

 Profile Answers by srikanth.cherukupalli Questions by srikanth.cherukupalli

• Jan 12th, 2012

Code
 

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for example i have 50 columns i filter the nulls in FBE.in filter by exp a parameter select_exp .what function is used .how to write the condition .i take a example on emp file(empno,ename,sal......).how to write the condition in filter by expression?

G

• Jan 13th, 2012

U can use : " " to filter null values using code.
Eg:
with worksheet.range("A1:B10")
.autofilter 2, criteria1: ""
end with

shiv

• Jan 2nd, 2012

IS NOTNULL(salary)

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