3/1/2023 0 Comments Oracle sql developer mysql![]() SQL functions can take arguments but always return some value.1 SQL Functions are a very powerful feature of SQL. Has a dash (-) as a continuation character if the command is longer than one lineĦ) Define the order of Precedence used in executing SQL statements?ħ) What are SQL functions? Describe in brief different types of SQL functions? 5) What is the difference between SQL and iSQL*Plus? SQLĬharacter and date column headings are left-justified and number column headings are right-justified.ĭefault heading justification is in the Centre. ![]() Date and character literals must be enclosed within single quotation marks (‘ ‘), number literals need not.įor exp: Select last_name||’ is a’||job_id As “emp details” from the employee (Here “is a” is a literal). If you want to enrich your career and become a P rofessional in Oracle PL SQL, then enroll in " Oracle PL SQL Training" - This course will help you to achieve excellence in this domain.Ĥ) What is a Literal? Give an example of where it can be used?Ī Literal is a string that can contain a character, a number, or a date that is included in the SELECT list and that is not a column name or a column alias. “ AS” Keyword before the alias name makes the SELECT clause easier to read.įor example Select emp_name AS name from employee (Here AS is a keyword and “name” is an alias). Enclose the alias in double quotation marks (“ “) to make it case-sensitive. By default column, alias headings appear in upper case. Transaction Control Statements: COMMIT, ROLLBACK, SAVEPOINTĭata Manipulation Language (DCL): GRANT, REVOKEĪlias is a user-defined alternative name given to the column or table. There are 5 different types of SQL statements.ĭata Manipulation Language (DML): INSERT, UPDATE, DELETE, MERGEĭata Definition Language (DDL): CREATE, ALTER, DROP, RENAME, TRUNCATE. SQL is a language used to communicate with the server to access, manipulate, and control data. SQL stands for Structured Query Language. Oracle PL SQL Interview Questions for Beginners 1) What is the difference between PL SQL and SQL?Ģ) What is SQL and also describe types of SQL statements? Explain Different Methods to Trace the Pl/SQL Code?.What are Triggering Events (Or) Trigger Predicate Clauses?.Write a Pl/SQL Program that Raises a User-defined Exception On Thursday?.What is the Difference Between the “verify” And the “feedback” Command?.What is the Difference Between Pl SQL and SQL?.We have categorized Oracle PL SQL Interview Questions - 2022 (Updated) into 3 levels they are: Here are frequently asked Oracle PL SQL Interview Questions, let's have a look into them. Mindmajix offers Advanced Oracle PL SQL Interview Questions 2022 that help you in cracking your interview & acquire a dream career as an Oracle PL SQL Developer. So, You still have the opportunity to move ahead in your career in Oracle PL SQL Development. According to research, Oracle PL SQL has a market share of about 2.2%. There are a lot of opportunities from many reputed companies in the world. If you're looking for Oracle PL SQL Interview Questions or Freshers, you are in the right place. Welcome to Mindmajix - The leading global online training platform.
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