BASIC SQL REFERENCE FOR ORACLE DBA
OVERVIEW OF SQL Please create the scott schema from the following GITHUB repository https://github.com/oracle/dotnet-db-samples/blob/master/schemas/scott.sql EXECUTING SELECT STATEMENT SQL> SELECT * FROM DEPT; DEPTNO DNAME LOC ———- ————– ————- 10 ACCOUNTING NEW YORK 20 RESEARCH DALLAS 30 SALES CHICAGO 40 OPERATIONS BOSTON HANDLING NULL VALUES SQL> SELECT EMPNO,ENAME,NVL(MGR,0) FROM EMP; EMPNO ENAME NVL(MGR,0) ———- ———- ———- 7369 SMITH 7902 7499 ALLEN […]