More PLSQL scripts

courses/course_effective_plsql/18_multiple_input.sql

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+/* 01 */
+
+CREATE OR REPLACE PROCEDURE ShowEmployeesHiredInRange(
+  v_startdate IN DATE,
+  v_enddate IN DATE
+)
+AS
+  v_empid NUMBER;
+  v_firstname VARCHAR2(100);
+  v_lastname VARCHAR2(100);
+  v_hiredate DATE;
+BEGIN
+  SELECT employee_id, first_name, last_name, hire_date
+  INTO v_empid, v_firstname, v_lastname, v_hiredate
+  FROM employees
+  WHERE hire_date BETWEEN v_startdate AND v_enddate
+  FETCH FIRST 1 ROWS ONLY;
+
+  DBMS_OUTPUT.PUT_LINE('Employee ' || v_empid || ' ' ||
+    v_firstname || ' ' || v_lastname || ' was hired on ' ||
+    v_hiredate);
+END;
+
+CALL ShowEmployeesHiredInRange(DATE'2005-01-01', DATE'2006-12-13');
+
+CALL ShowEmployeesHiredInRange(DATE'2006-12-13', DATE'2005-01-01');
+
+CALL ShowEmployeesHiredInRange(
+  v_startdate => DATE'2005-01-01',
+  v_enddate => DATE'2006-12-13'
+);
+
+CALL ShowEmployeesHiredInRange(
+  v_enddate => DATE'2006-12-13',
+  v_startdate => DATE'2005-01-01'
+);

courses/course_effective_plsql/19_insert.sql

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+SELECT *
+FROM employees;
+
+
+CREATE OR REPLACE PROCEDURE InsertEmployeeSimple(
+  v_firstname IN VARCHAR2,
+  v_lastname IN VARCHAR2,
+  v_email IN VARCHAR2,
+  v_salary IN NUMBER
+)
+AS
+BEGIN
+    INSERT INTO employees (employee_id, first_name, last_name, email,
+    phone_number, hire_date, job_id, salary, commission_pct,
+    manager_id, department_id)
+    VALUES (employees_seq.nextval, v_firstname, v_lastname, v_email,
+    NULL, SYSDATE, 'SH_CLERK', v_salary, NULL,
+    NULL, 50);
+
+END;
+
+CALL InsertEmployeeSimple(
+  v_firstname => 'Ben',
+  v_lastname => 'Brumm',
+  v_email => 'BBRUMM',
+  v_salary => 1000
+);
+
+
+SELECT *
+FROM employees
+ORDER BY employee_id DESC;

courses/course_effective_plsql/20_update.sql

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+SELECT *
+FROM employees;
+
+CREATE OR REPLACE PROCEDURE UpdatePeopleContactDetails(
+	v_emp_id NUMBER,
+	v_phonenumber VARCHAR2,
+	v_emailaddress VARCHAR2
+)
+AS
+BEGIN
+    UPDATE employees
+    SET phone_number = v_phonenumber,
+    email = v_emailaddress
+    WHERE employee_id = v_emp_id;
+END;
+
+CALL UpdatePeopleContactDetails(
+    v_emp_id => 207,
+    v_phonenumber => '515.123.1111',
+    v_emailaddress => 'BENBRUMM'
+);
+
+SELECT *
+FROM employees
+WHERE employee_id = 207;

courses/course_effective_plsql/21_delete.sql

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+CREATE OR REPLACE PROCEDURE DeleteEmployee(
+  v_empid IN NUMBER
+)
+AS
+BEGIN
+    DELETE FROM employees
+    WHERE employee_id = v_empid;
+
+    DBMS_OUTPUT.PUT_LINE('Employee ID ' || v_empid || ' deleted.');
+END;
+
+CALL DeleteEmployee(207);

courses/course_effective_plsql/22_call.sql

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+CALL FindEmployeeName(102);
+
+DECLARE
+    found_first_name VARCHAR2(100);
+BEGIN
+    FindEmployeeName(101, found_first_name);
+    DBMS_OUTPUT.PUT_LINE(found_first_name);
+END;

courses/course_effective_plsql/22_out_params.sql

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+CREATE OR REPLACE PROCEDURE FindEmployeeName(
+    v_employee_id IN NUMBER,
+    v_first_name OUT VARCHAR
+)
+AS
+BEGIN
+  SELECT first_name
+  INTO v_first_name
+  FROM employees
+  WHERE employee_id = v_employee_id;
+
+END;
+

courses/course_effective_plsql/29_flow.sql

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+CREATE OR REPLACE PROCEDURE ShowEmployeesHiredInRange(
+  v_startdate IN DATE,
+  v_enddate IN DATE
+)
+AS
+  v_empid NUMBER;
+  v_firstname VARCHAR2(100);
+  v_lastname VARCHAR2(100);
+  v_hiredate DATE;
+BEGIN
+  SELECT employee_id, first_name, last_name, hire_date
+  INTO v_empid, v_firstname, v_lastname, v_hiredate
+  FROM employees
+  WHERE hire_date BETWEEN v_startdate AND v_enddate
+  FETCH FIRST 1 ROWS ONLY;
+
+  DBMS_OUTPUT.PUT_LINE('Employee ' || v_empid || ' ' ||
+    v_firstname || ' ' || v_lastname || ' was hired on ' ||
+    v_hiredate);
+END;
+
+
+CALL ShowEmployeesHiredInRange(
+  v_startdate => DATE'2005-01-01',
+  v_enddate => DATE'2006-12-13'
+);
+
+
+/*
+Add IF
+*/
+
+CREATE OR REPLACE PROCEDURE ShowEmployeesHiredInRange(
+  v_startdate IN DATE,
+  v_enddate IN DATE
+)
+AS
+  v_empid NUMBER;
+  v_firstname VARCHAR2(100);
+  v_lastname VARCHAR2(100);
+  v_hiredate DATE;
+BEGIN
+  IF v_startdate > v_enddate THEN
+    DBMS_OUTPUT.PUT_LINE('Invalid entry: the start date is after the end date.');
+  ELSE
+      SELECT employee_id, first_name, last_name, hire_date
+      INTO v_empid, v_firstname, v_lastname, v_hiredate
+      FROM employees
+      WHERE hire_date BETWEEN v_startdate AND v_enddate
+      FETCH FIRST 1 ROWS ONLY;
+
+      DBMS_OUTPUT.PUT_LINE('Employee ' || v_empid || ' ' ||
+        v_firstname || ' ' || v_lastname || ' was hired on ' ||
+        v_hiredate);
+  END IF;
+END;
+
+
+CALL ShowEmployeesHiredInRange(
+  v_startdate => DATE'2005-01-01',
+  v_enddate => DATE'2006-12-13'
+);
+
+
+CALL ShowEmployeesHiredInRange(
+  v_startdate => DATE'2008-01-01',
+  v_enddate => DATE'2006-12-13'
+);

courses/course_effective_plsql/30_basic_loop.sql

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+CREATE OR REPLACE PROCEDURE ListHelloBasic
+AS
+  v_loop_counter NUMBER;
+BEGIN
+  v_loop_counter := 1;
+  LOOP
+    DBMS_OUTPUT.PUT_LINE('Hello');
+    v_loop_counter := v_loop_counter + 1;
+
+    IF (v_loop_counter > 10) THEN
+      EXIT;
+    END IF;
+  END LOOP;
+END;
+
+CALL ListHelloBasic();

courses/course_effective_plsql/30_insert_locations.sql

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+SELECT *
+FROM locations;
+
+CREATE OR REPLACE PROCEDURE InsertLocations
+AS
+  v_loop_counter NUMBER;
+BEGIN
+  LOOP
+    INSERT INTO locations (location_id, street_address, postal_code, 
+    city, state_province, country_id)
+    VALUES (locations_seq.nextval, 'Temp Address', 12345,
+    'Sydney', 'New South Wales', 'AU');
+
+    v_loop_counter := v_loop_counter + 1;
+
+    IF (v_loop_counter > 4) THEN
+      EXIT;
+    END IF;
+  END LOOP;
+END;