Explain the different isolation levels in Sybase. 4. What is the purpose of the sp_help stored procedure in Sybase?

Interview Questions: Sybase

1. Explain the different isolation levels in Sybase:

The different isolation levels in Sybase are:

• Read Uncommitted: Allows transactions to read rows that have been modified but not yet committed by other transactions.
• Read Committed: Ensures that transactions only read data that has been committed by other transactions.
• Repeatable Read: Prevents other transactions from modifying data that has been read by the current transaction until it is committed.
• Serializable: Ensures that transactions are isolated from one another and that no other transactions can modify data that has been read by the current transaction until it is committed.

2. What is the purpose of the sp_help stored procedure in Sybase?

The sp_help stored procedure in Sybase is used to display information about a database object such as a table, view, or stored procedure. It provides details such as the structure of the object, its columns, indexes, dependencies, and other relevant information.