what are different types of locks?
Answers were Sorted based on User's Feedback
Answer / bibhuti bhusan patra
implicit locks & explicit locks
implicit locks are maintained by oracle internally.
&explicit locks are performed by user manualy.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / shanmugavelu
row level and table level locks,
dont try share update lock its failure in table lelvel ..
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / pratap dixit
Pessimistic and Optimistic lock
Pessimistic- at the time of reading , locking the row
Optimistic- at time of updating , locking the row.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / a.brahmam
mainly two types of locks
1.Row Level Locks
2.Table Level Locks
Table Level Locks Are Two Types
-------------------------------------------------
1.Share Lock
2.Exclusive Lock
| Is This Answer Correct ? | 0 Yes | 0 No |
does Oracle has only one table space?
How many anonymous blocks can be defined?
How to assign values to variables?
Please help me how to write a Query to change the primary key constraint from 1 attribute to another attribute in a table
what are the differen between key flexifild and discriptive fiexifild.
IS it possible to built the oracle database without setting the kernal parameters?
How can we manage the gap in a primary key column created by a sequence? Ex:a company has empno as primary key generated by a sequence and some employees leaves in between.What is the best way to manage this gap?
What to do if dba lost the system password?
What are various constraints used in SQL?
Does facebook use oracle?
What is oracle data type?
What are the different types of database objects?