Answer / sridevi

alter table <table name> modify (columnname newdatatype
(size))

Answer / sridevi

alter table <tablename> add column(col.name(size))

Answer / rajini

alter table tablename add(colname datatype,colname1
datatype...);
alter table tablename modify(colname datatype,colname1
datatype..);

Answer / guest

alter table tablename add(col1 datatype,col2 datatype...);
alter table tablenamemodify(col1 datatype,col2 datatype..);

Answer / guest

alter table <table name> modify(column definition...);
alter table <table name> add(column definitions...);

Answer / guest

Alter table tablename(data types1,...datatypen)

Answer / suri

alter table tablename add(colname datatype,colname1
datatype...);
alter table tablename modify(colname datatype,colname1
datatype..);

Answer / sandeep

alter table <table_name> add column <Data type of the column>;

what is null value?

11 Answers   KITS, Oracle,

can you write commit in triggers?

4 Answers  

What is meant by a deadlock situation?

0 Answers  

One Table having two rows with one colomn having values Like"Male" and "Female". how to upadte these values Like "Female" and "Male" in single update statement.

6 Answers   Polaris,

What are the sql clauses supported in the link property sheet ?

1 Answers   Oracle,

What are the components of Logical database structure of ORACLE database?

4 Answers  

How to find out what oracle odbc drivers are installed?

0 Answers  

1. what is a single procedure? 2. suppose a view constructed on a query... after that in the master table a column was dropped, then what will be the status of that view? will it be invalid or something else? 3. what is mutating table error? how can you solve that problem? 4. suppose "select * from emp where empno=7788;" is running slow because of what ever the cause it is.. how can you fix it and make the execution faster? 5. will the snapshot of data will be stored in the RAM , where will ir be stored exactly. 6. how to delete 100 tables or 100000 tables' data from the schema without writing delete statement for no.of times. write an sql statement to do that job. 7. suppose a package contains so many cursors, procedures and all.. and we are using such types of procedures so many in a program. so the execution is to be stored all those packages and all to the RAM. utimately it is using many resources for each time execution. how can you reduce the time and using of resources for each execution because the query need to be run many times. how can you tune that? 8. suppose a procudere is there with specs as (a,b,c,d), all of these are IN mode only then while calling them should we pass all the 4 arguments? how to pass (b,c) only.. how ever the specs are wrote in the same order displayed in the above? 9. a function is returning a table type, how to access that function in a select statement? 10. i have a table in database A and another table in database B, how can you access the data of these two tables? write a query for that with dblinks. 11. i have two tables might have 15/20 columns in that.. i wanna send these columns(table) to the front end application for example you are using asp.net by writing a procedure. write that to perform the above job. 12. shall we create a table in the package? 13. shall we create a table in the procedure? 14. suppose i have 10 records, in that i want to select 7th record. write a query for that. cant you use rownum for this? 15. suppose my procedure has got around 20 select statements, in that some three select statements are running very slow. what will you write to detect which queries are running slowly? 16. what fields you use frequently in plan_table? 17. what is pipeline function? explain me with an example. 18. does a unique column can contain more than one null? 19. how many hints are there provided by oracle?

5 Answers   Honeywell,

Explain about integrity constraint?

0 Answers  

What are steps required to ENTER DATA INTO DWH?

2 Answers  

Explain cascading triggers.

0 Answers  

Will the Optimizer always use COST-based approach if OPTIMIZER_MODE is set to "Cost"?

1 Answers