File Name: oracle sql pl sql interview questions and answers .zip
- Oracle PL SQL Interview Questions
- PL/SQL Interview Questions and Answers
- Top 65 PL/SQL Interview Questions & Answers
- 500 Oracle interview questions and answers - Oracle FAQ PDF.pdf
PL SQL is a procedural language which has interactive SQL, as well as procedural programming language constructs like conditional branching and iteration. Cursor is a named private area in SQL from which information can be accessed. They are required to process each row individually for queries which return multiple rows. It then opens a cursor, gets rows of values from the active set in fields of the record and shuts when all records are processed.
Oracle PL SQL Interview Questions
It is a block-structured language having logical blocks which are made up of three sub-blocks i. It includes procedural language elements like conditions and loops and allows declaration of constants and variables, procedures and functions. It also helps the users to develop complex database applications using control structures, procedures, modules, etc. Each constant, value and parameter has a data type that tells us the type of data used and their associated operations in the program. It is an attribute which is used for anchoring. The fields of the row have same name and data types as column in the view.
PL/SQL Interview Questions and Answers
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What is Oracle and what are its different editions? Answer: Oracle is one of the popular database provided by Oracle Corporation, which works on relational management concepts and hence it is referred to as Oracle RDBMS as well. It is widely used for online transaction processing, data warehousing, and enterprise grid computing. What is a Data Dictionary and how can it be created? Answer : Whenever a new database is created, a database-specific data dictionary gets created by the system. This dictionary maintains all the metadata related to the database and owned by the SYS user. The purpose of using these attributes is to provide data independence and integrity.
Download PDF. 1) What is PL SQL? PL SQL is a procedural language which has interactive SQL, as well as procedural programming.
Top 65 PL/SQL Interview Questions & Answers
Answer: Cursor is a sql private work area. It opens an area of memory where the query is parsed and executed. Answer: When referencing the current row from an explicit cursor,use the where current of clause.
500 Oracle interview questions and answers - Oracle FAQ PDF.pdf
It supports procedural features of programming language and SQL both. It is invented to overcome the limitations of SQL. Arrays are like temporary tables in memory that are processed very quickly. They simplifies moving collections of data. A function has a return type in its specification and must return a value specified in that type. Procedure : A procedure does not have a return type and should not return any value but it can have a return statement that simply stops its execution and returns to the caller.
PL Procedural language is an extension to SQL Structured Query Language where a developer can write complex database interactions using procedures, control structures like branching and iteration, modules and functions. A nswer: A procedural language where code can be executed in blocks. It is an extension of SQL. The cursor is used to hold records returned by the SQL query. There are 2 types of cursors — implicit and explicit. Answer: The trigger is a stored procedure that is automatically invoked when an event happens. The event could be: insert, update, delete, etc… Syntax —.
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This part contains only Pl/Sql Interview Questions and answers for both Higher productivity; Full portability; Tight integration with Oracle; Tight security.