Let us suppose we have a table with structure in order
empno
empname
empdesig
empcountry
and now i want to re-organize the columns of this table to
empno
empdesig
empname
empcountry
how can i do this with queries ?
assume that table contains the data.
Answers were Sorted based on User's Feedback
Answer / jyothi
there is only one way to to re-arrange the table
that is views...
create view <view-name>as select <fields> from <tablename>
.........
for example..
create view vw as select empno,empdesig,empname,empcountry
from <tablename>...
(u can get message that is view created)
just display the data using viewname(vw)..
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / s. syam sundar
try this
create table emp1 as select
empno,empdesig,empname,empcountry from emp
this would creat a new table named as emp1 and
u can retrive the data from this table as of emp
but constraints,indexs which u have on emp table are
created on this emp1 table
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / bala
try updating the values for COLUMN_ID in the
ALL_TAB_COLUMNS table..using Admin Privilege. to update
this table...
| Is This Answer Correct ? | 1 Yes | 2 No |
What is the difference between explicit and implicit cursors in oracle?
What are all the different normalization?
what is inline view?
How do you get all records from 2 tables. Which join do you use?
Can you selectively load only those records that you need? : aql loader
what are the advantages of using stored procedures? : Sql dba
What are sql injection vulnerabilities?
Can a table have two primary keys?
What is java sql package?
Can we use update in sql function?
What is the command used to fetch first 5 characters of the string?
Which one of the following is a reason that an INSERT statement might cause an error instead of executing correctly? 1. The INSERT statement was attempting to insert a record into a view that was created from more than one table. 2. The INSERT statement was attempting to insert a record using a combination of constants and values from an existing table. 3. The INSERT statement was attempting to insert a record with a non-NULL value into a table that has that column defined as NULL. 4. The INSERT statement was attempting to insert a record into a table by selecting a record from that same table. 5. The INSERT statement was attempting to insert a record into a view rather than a table.
Oracle (3253)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)