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- PL SQL DEVELOPER INTERVIEW QUESTIONS AND ANSWERS PORTABLE
- PL SQL DEVELOPER INTERVIEW QUESTIONS AND ANSWERS CODE
Some other types of objects which are not contained within a schema are the following: Stored functions, procedures, and packages.Materialized views and materialized view logs.Object tables, object types, and object views.These schema objects types are classified as follows: Mention a few of the schema objects that can be created using PL/SQL?Ī schema is defined as a user-owned set of schema objects, also as logical data structures. Let us now have a look at the advanced PLSQL Interview Questions and Answers. Part 2 – PLSQL Interview Questions (Advanced) Triggers are used for security, too they can implement security authorization functions and handle invalid transactions. And, For event logging within the table activities such as auditing and creating table duplicates. For example, they are used to generate column values upon activation. There are many other uses of triggers as well. They can be coded within a view or table and also a database or scheme for which the given event belongs.
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They are hardcoded inside the PLSQL program, and they listen to events which are as follow:
PL SQL DEVELOPER INTERVIEW QUESTIONS AND ANSWERS CODE
Triggers can be understood as blocks of code running whenever the criteria for a specific event are satisfied. What do you understand by triggers and provide their uses? CLOSE – This is used for releasing the memory space.FETCH – It assigns values from the current row, called a cursor position, into a specified variable.OPEN – It can be used to execute the query generated above, the rows returned by the query after execution are available for fetching at a later stage.DECLARE – This is used to assign a name to the cursor and then define the structure of the query that goes within it.The steps which can be performed on explicit cursor are − This is the common PLSQL Interview Questions asked in an interview. Point out the steps that are needed to perform to use an explicit cursor? Cursors allow programmers to give a name to this area and access the information stored here. A cursor can be treated as an identifier for this area. What it means is that when Oracle processes a SQL command, an area in the memory called Private SQL Area is opened. Oracle uses something called workspaces which executes the SQL commands. Explain what do you understand by PL/SQL cursors? Let us move to the next PLSQL Interview Questions. Schema objects that can be created using PLSQL are the following: Mention a few schema objects which can be created using PL/SQL? PL-SQL provides Integration to all Oracle data dictionaries.
PL SQL DEVELOPER INTERVIEW QUESTIONS AND ANSWERS PORTABLE
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Provide some of the most notable characteristics of PL/SQL. This first part covers basic PLSQL Interview Questions and Answers. These interview questions are divided into two parts are as follows: Part 1 – PLSQL Interview Questions (Basic) In this 2021 PLSQL Interview Questions article, we shall present the 10 most essential and frequently used PLSQL interview questions. Hadoop, Data Science, Statistics & others