Update 1.sql

Author: TheComputationalCore

1.sql

@@ -1,10 +1,54 @@
-show databases;
-use tasks;
-show tables;
-select * from Empl;
-select ename,sal from Empl where sal>=2200;
-select * from Empl where comm is NULL;
-select ename,sal from Empl where sal not between 2500 and 4000;
-select ename,job,sal from Empl where mgr is NULL;
-select ename from Empl where ename like '_A%';
-select ename from Empl where ename like '%T';
+-- SHOW ALL DATABASES
+SHOW DATABASES;
+
+-- SWITCH TO THE TASK DATABASE
+USE tasks;
+
+-- SHOW ALL TABLES
+SHOW TABLES;
+
+-- VIEW ALL EMPLOYEE RECORDS
+SELECT * FROM Empl;
+
+----------------------------------------------------
+-- 1. Employees with salary >= 2200
+----------------------------------------------------
+SELECT ename, sal
+FROM Empl
+WHERE sal >= 2200;
+
+----------------------------------------------------
+-- 2. Employees NOT receiving commission
+----------------------------------------------------
+SELECT *
+FROM Empl
+WHERE comm IS NULL;
+
+----------------------------------------------------
+-- 3. Employees with salary NOT BETWEEN 2500 & 4000
+----------------------------------------------------
+SELECT ename, sal
+FROM Empl
+WHERE sal NOT BETWEEN 2500 AND 4000;
+
+----------------------------------------------------
+-- 4. Employees who do NOT have a manager
+----------------------------------------------------
+SELECT ename, job, sal
+FROM Empl
+WHERE mgr IS NULL;
+
+----------------------------------------------------
+-- 5. Employees whose name has 'A' as the THIRD letter
+-- FIXED: __A%  →  two underscores
+----------------------------------------------------
+SELECT ename
+FROM Empl
+WHERE ename LIKE '__A%';
+
+----------------------------------------------------
+-- 6. Employees whose name ends with 'T'
+----------------------------------------------------
+SELECT ename
+FROM Empl
+WHERE ename LIKE '%T';