How do I encrypt a stored procedure in SQL Server?
To encrypt a stored procedure you just need to use the WITH ENCRYPTION option along with the CREATE PROCEDURE script. Below is an example of creating stored procedures one with encryption and another without encryption. Now, run sp_helptext for the stored procedures to see the source code of the procedure.
How do I restrict access to stored procedure in SQL Server?
Secure Stored Procedure permissions
- Open SQL Server Management Studio and connect to your SQL server.
- In the Object Explorer, access to your database and expand it.
- Expand the Security folder.
- Right-click the “Database Roles” folder and select “New Database Role…”
- In the “New Database Role” window.
What is the use of Sp_getapplock?
When an application calls sp_getapplock multiple times for the same lock resource, sp_releaseapplock must be called the same number of times to release the lock. When a lock is opened with the Transaction lock owner, that lock is released when the transaction is committed or rolled back.
How do I decrypt a stored procedure?
Once you have installed SQL Decryptor, decrypting an object like a stored-procedure is fast and simple. To get started, open SQL Decryptor and connect to the SQL Server instance that contains the database with the encrypted stored-procedures you want to decrypt. Then browse to the stored-procedure in question.
Does stored procedure lock table?
In contrast, stored procedures do not acquire table-level locks. All statements executed within stored procedures are written to the binary log, even for statement-based binary logging.
How do I lock a table in SQL query?
The LOCK TABLE statement allows you to explicitly acquire a shared or exclusive table lock on the specified table. The table lock lasts until the end of the current transaction. To lock a table, you must either be the database owner or the table owner.
Why stored procedure is better than query?
every query is submited it will be compiled & then executed. where as stored procedure is compiled when it is submitted for the first time & this compiled content is stored in something called procedure cache,for subsequent calls no compilation,just execution & hence better performance than query.
Can Db_datareader view stored procedure?
db_datareader / db_datawriter allows access only to tables & views, but no to execute a stored procedure; you have to grant EXECUTE permissions separatly.
What is trigger explain with an example?
Trigger: A trigger is a stored procedure in database which automatically invokes whenever a special event in the database occurs. For example, a trigger can be invoked when a row is inserted into a specified table or when certain table columns are being updated.
What does the Sp_lock system stored procedure do?
The sp_lock system stored procedure is a great tool for checking the amount of locking that occurs on your database system. It returns the number and types of locks that are being held by current active SQL Server sessions.
What is a session in SQL Server?
The session in SQL Server corresponds to the Wikipedia definition of a session: a semi-permanent container of state for an information exchange. In other words the sessions stores settings like cache of your login information, current transaction isolation level, session level SET values etc etc.
How can we prevent blocked session in SQL Server?
There are a few design strategies that can help reduce the occurrences of SQL Server blocking and deadlocks in your database:
- Use clustered indexes on high-usage tables.
- Avoid high row count SQL statements.
- Break up long transactions into many shorter transactions.
- Make sure that UPDATE and DELETE statements use indexes.