|
Related Questions |
View Answer |
|
Difference between SUBSTR and INSTR
|
View Answer
|
|
Explain UNION, MINUS, UNION ALL and INTERSECT
|
View Answer
|
|
What is ROWID
|
View Answer
|
|
What is the fastest way of accessing a row in a table?
|
View Answer
|
|
What is an integrity constraint
|
View Answer
|
|
What is referential integrity constraint
|
View Answer
|
|
What is the usage of SAVEPOINTS
|
View Answer
|
|
What is ON DELETE CASCADE
|
View Answer
|
|
What are the data types allowed in a table
|
View Answer
|
|
What is difference between CHAR and VARCHAR2?
|
View Answer
|
|
What is the maximum SIZE allowed for each type
|
View Answer
|
|
How many LONG columns are allowed in a table
|
View Answer
|
|
Is it possible to use LONG columns in WHERE clause or ORDER BY
|
View Answer
|
|
What are the pre-requisites to modify datatype of a column and to add a column with NOT NULL constraint
|
View Answer
|
|
Where the integrity constraints are stored in data dictionary
|
View Answer
|
|
How will you activate/deactivate integrity constraints
|
View Answer
|
|
If unique key constraint on DATE column is created, will it validate the rows that are inserted with SYSDATE
|
View Answer
|
|
What is a database link
|
View Answer
|
|
How to access the current value and next value from a sequence
|
View Answer
|
|
Is it possible to access the current value in a session before accessing next value
|
View Answer
|