📁 SQL Interview Questions


Good SQL Queries Collection

Good SQL Queries Collection /* CREATE TABLE FOR DEPARTMENT */ CREATE TABLE DEPARTMENT ( “DEPT_ID” NUMBER, “DEPT_NAME” VARCHAR2(30), PRIMARY KEY (“DEPT_ID”) ) /* CREATE TABLE FOR EMP */ CREATE TABLE EMPLOYEE ( “EMP_ID” NUMBER, “MGR_ID” NUMBER, “DEPT_ID” NUMBER, “EMP_NAME” VARCHAR2(30), “SAL” NUMBER, “DOJ” DATE, PRIMARY KEY (“EMP_ID”) ENABLE, FOREIGN KEY (“MGR_ID”) REFERENCES EMPLOYEE (“EMP_ID”) ENABLE, FOREIGN KEY (“DEPT_ID”) REFERENCES DEPARTMENT (“DEPT_ID”) ENABLE ) /* INSERT STATEMENT FOR DEPARTMENT */ INSERT […]


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I have attended Siva’s Spark and Scala training. He is good in presentation skills and explaining technical concepts easily to everyone in the group. He is having excellent real time experience and provided enough use cases to understand each concepts. Duration of the course and time management is awesome. Happy that I found a right person on time to learn Spark. Thanks Siva!!!

Dharmeswaran ETL / Hadoop Developer Spark Nov 2016 September 21, 2017

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