What does PL SQL stand for?

PL/SQL (Procedural Language for SQL) is Oracle Corporation’s procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 6 – stored PL/SQL procedures/functions/packages/triggers since version 7), Times Ten in-memory database (since version 11.2.

What is meant by PL SQL?

PL/SQL is a procedural language designed specifically to embrace SQL statements within its syntax. PL/SQL program units are compiled by the Oracle Database server and stored inside the database. And at run-time, both PL/SQL and SQL run within the same server process, bringing optimal efficiency.

What is PL SQL and what is it used for?

PL/SQL lets you use all SQL data manipulation, cursor control, and transaction control statements, and all SQL functions, operators, and pseudocolumns. PL/SQL fully supports SQL data types. You need not convert between PL/SQL and SQL data types.

What is difference between SQL and PL SQL?

SQL is a Structural Query Language created to manipulate relational databases. It is a declarative, detail-oriented language. Whereas, PL/SQL is a Procedural Language/Structured Query Language that uses SQL as its database.

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What is PL SQL purpose of PL SQL?

In Oracle database management, PL/SQL is a procedural language extension to Structured Query Language (SQL). The purpose of PL/SQL is to combine database language and procedural programming language.

What are the disadvantages of PL SQL?

Disadvantages of using PL/SQL

  • The debugger never worked.
  • Ant syntax error is just reported by a general error message. Without any. indication for its location. The only way to find it is to comment out parts. …
  • The syntax is awkward, complex and inconsistent.

What is PL SQL with example?

PL/SQL is basically a procedural language, which provides the functionality of decision making, iteration and many more features of procedural programming languages. PL/SQL can execute a number of queries in one block using single command.

PL/SQL Introduction.

SQL PL/SQL
Mainly used to manipulate data. Mainly used to create an application.

Where do we use PL SQL?

PL/SQL gives high productivity to programmers as it can query, transform, and update data in a database. PL/SQL saves time on design and debugging by strong features, such as exception handling, encapsulation, data hiding, and object-oriented data types. Applications written in PL/SQL are fully portable.

Is PL SQL still used?

The answer is that PL/SQL is not growing, but not going away either. Because it is used in the Oracle database, and the Oracle database is a fixture of enterprise systems world-wide, it will outlive you. High-performance batch processing has to happen close to the data, so PL/SQL will continue to rule in this area.

How will you have PL SQL?

The PL/SQL engine can only be installed in an Oracle Database server or an application development tool such as Oracle Forms. Once you submit a PL/SQL block to the Oracle Database server, the PL/SQL engine collaborates with the SQL engine to compile and execute the code.

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What triggers SQL?

A trigger is a special type of stored procedure that automatically runs when an event occurs in the database server. DML triggers run when a user tries to modify data through a data manipulation language (DML) event. DML events are INSERT, UPDATE, or DELETE statements on a table or view.

Is SQL same as MySQL?

SQL is a query language, whereas MySQL is a relational database that uses SQL to query a database. … SQL follows a standard format wherein the basic syntax and commands used for DBMS and RDBMS remain pretty much the same, whereas MySQL receives frequent updates.

What are the three PL SQL block types?

A PL/SQL block consists of three sections: declaration, executable, and exception-handling sections.

Is PL SQL good for Career?

PL SQL is an integrated and high-performance database language that can work well with other languages like C++, Java, and C#. However, if you want to write a code that is going to interact with Oracle database, there is no better language than PL SQL for this job.

Is as in PL SQL?

Answer: The PL/SQL language evolved such the the “IS” and “AS” operators are equivalent. Functionally the “IS” and “AS” syntax performs identical functions and can be used interchangeably. However, in SQL there is a subtle difference between “AS” and “IS”: SQL> create or replace view emp_view as select * from scott.

Is PL SQL an ETL tool?

Strengths and weaknesses of using Oracle PL/SQL as an ETL tool. Costs – PL/SQL comes along with the standard Oracle licence and if an oracle database is installed, PL/SQL can be used straight away with no additional costs. No additional hardware is needed.

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