SQL Complex Queries. These questions are the most frequently asked in interviews. To fetch ALTERNATE records from a table. How to fetch monthly salary of each and every employee? How can I fetch all the recods but common records only once?(Select * from emp) Union (Select * from emp. How to fetch only common records from two tables emp and emp. Select * from emp) Intersect (Select * from emp. How can I retrive all records of emp. Select * from emp) Minus (Select * from emp. Count the totalsa deptno wise where more than 2 employees exist. SELECT deptno, sum(sal) As totalsal. FROM emp. GROUP BY deptno. HAVING COUNT(empno) > 2. PL/SQL stored programs are at the core of Oracle databases. Java can be used to handle complex. Legacy PL/SQL – what is it? Oracle PL/SQL Fundamentals vol. Declaring Complex RowTypes and Assignments. This PL/SQL tutorial will be growing regularly; let us know if any topic related to PL SQL needs to be added or you can also share your knowledge on PL SQL with us. The Senior PL/SQL Developer will develop project initiation. Develops complex test plans to verify logic of new or modified. 1.7 Best Practices for PL/SQL. I have honed my sense of what we all need to do to write excellent PL/SQL programs. Avoid hard-coded literals of any kind in your programs. Understanding PL/SQL Functions Declaring PL/SQL Subprograms. PL/SQL Coding Guidelines 2. SQL Joins; SQL Complex Queries. Back; BO Tutorial; CouchDB. Basic and complex SQL joins made easy. Comments; Facebook; Linkedin; Twitter; More.
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