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PL/SQL declare function within an anonymous block
Here is the list of SQL Server interview questions and answers for freshers and experienced. Start learning now. A candidate key is one that can uniquely identify each row of a table. Generally, a candidate key becomes the primary key of the table. If the table has more than one candidate key, one of them will become the primary key and the rest are called alternate keys. A primary key is a special candidate key. It is an attribute or minimal set of attributes that not only uniquely identifies a specific occurrence of the entity, but also exists for every occurrence of an entity.
Email From Oracle PL/SQL (UTL_SMTP)
Python is an interpreted high-level general-purpose programming language. Python's design philosophy emphasizes code readability with its notable use of significant indentation. Its language constructs as well as its object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects. Python is dynamically-typed and garbage-collected.
Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it. Oracle is transaction oriented; that is, Oracle uses transactions to ensure data integrity. A transaction is a series of SQL data manipulation statements that does a logical unit of work. It is important not to allow one operation to succeed while the other fails.