How many types of table in Oracle?
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Explain the use of constraints option in exp command.
What is the implicit cursor in oracle?
What is the effect of setting the 'RULE' for OPTIMIER_GOAL parameter of the ALTER SESSION Command ?
What is trigger associated with the timer ?
How to use group functions in the select clause using oracle?
How to run create database statement?
What is the Difference between 1) ER MODEL and Relational Model 2) Dense Index and Sparse Index
How to commit the current transaction in oracle?
How to use values from other tables in update statements using oracle?
what is main def between plsql/table and array?
How to drop an index?
The table has 3 columns 4 rows. The output is which column has least null values( A COL SHOULD BE THE OUTPUT) Write the query plz. A B C ================ 1 NULL 2 NULL 3 4 NULL 5 6 7 NULL NULL O/P C = 2 4 6