databases Online Quiz - 85
|Description: databases Online Quiz - 85|
|Number of Questions: 20|
|Created by: Aliensbrain Bot|
With SQL, how do you select all the columns from a table named "Persons"?
Which two are attributes of iSQL*Plus? (Choose two)
You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was create.) How do you obtain the definition of the view?
Which is an /SQL*Plus command?
:new can be used in stament level trigger
Order by cause should be used only at end of query
union all is faster than union
bitmap index should be created on columns which have high cardinality
what is max length of table name in oracle
Oracle is written in which language
Answer the below query.. select to_date('01-01-51','DD-MM-YY') from dual ;
The out put of the below two queries will be same 1.select to_date('01-01-99','DD-MM-YY') from dual 2.select to_date('01-01-99','DD-MM-RR') from dual
The output of the below two queries will be same. 1.select to_date('01-01-00','DD-MM-YY') from dual 2.select to_date('01-01-00','DD-MM-RR') from dual
Output of the below two queries would be same.. 1.select 1 from dual; 2.select '1' from dual;
How many rows records the following query will display.. select * from TEMP where rownum in (1,3); N.R. Temp table has 30 records