Create TABLE Emp_test1
(Employee_id Number (6)
CONSTRAINT employee_id NOT NULL,
FIRST_NAME Varchar2 (20),
LAST_NAME Varchar2 (25)
CONSTRAINT Last_name NOT NULL,
Email Varchar2 (25)
CONSTRAINT Email NOT NULL,
PHONE_NUMBER Varchar2 (20)
HIRE_DATE Date
CONSTRAINT Hire_date NOT NULL,
Job_id Varchar2 (10)
CONSTRAINT Job_id NOT NULL,
Salary Number (8,2),
Commission_pct Number (2,2),
Manager_id NUmber (6),
Department_id Number (4)),
Why do I keep getting an ORA 00907 missing right parenthesis on the hire_date line?
You've lost a comma after PHONE_NUMBER Varchar2 (20),
Create TABLE Emp_test1
(Employee_id Number (6)
CONSTRAINT employee_id NOT NULL,
FIRST_NAME Varchar2 (20),
LAST_NAME Varchar2 (25)
CONSTRAINT Last_name NOT NULL,
Email Varchar2 (25)
CONSTRAINT Email NOT NULL,
PHONE_NUMBER Varchar2 (20),
HIRE_DATE Date
CONSTRAINT Hire_date NOT NULL,
Job_id Varchar2 (10)
CONSTRAINT Job_id NOT NULL,
Salary Number (8,2),
Commission_pct Number (2,2),
Manager_id NUmber (6),
Department_id Number (4));
Related
create table EMPLOYEES
(
EMPLOYEE_ID NUMBER(6) PRIMARY KEY,
FIRST_NAME VARCHAR2(20) DEFAULT NULL,
LAST_NAME VARCHAR2(25),
EMAIL VARCHAR2(25),
PHONE_NUMBER VARCHAR2(20) DEFAULT NULL,
HIRE_DATE DATE(7),
JOB_ID VARCHAR2(10),
SALARY NUMBER(8,2) DEFAULT NULL,
COMISSION_PCT NUMBER(2,2) DEFAULT NULL,
MANAGER_ID NUMBER(6) DEFAULT NULL,
DEPARTMENT_ID NUMBER(4) DEFAULT NULL
);
This is what I want to create (constraints and other information)
date datatype doesn't accept the length so no need to write date(7) just simply write date and after you run the command desc EMPLOYEES; it will show you that the length of date is by default 7.
create table EMPLOYEES(
EMPLOYEE_ID NUMBER(6) PRIMARY KEY,
FIRST_NAME VARCHAR2(20) DEFAULT NULL,
LAST_NAME VARCHAR2(25) NOT NULL,
EMAIL VARCHAR2(25) NOT NULL,
PHONE_NUMBER VARCHAR2(20) DEFAULT NULL,
HIRE_DATE DATE NOT NULL,
JOB_ID VARCHAR2(10) NOT NULL,
SALARY NUMBER(8,2) DEFAULT NULL,
COMISSION_PCT NUMBER(2,2) DEFAULT NULL,
MANAGER_ID NUMBER(6) DEFAULT NULL,
DEPARTMENT_ID NUMBER(4) DEFAULT NULL
);
--dept table
create table department(
dept_id number(5) ,
dept_name varchar2(100),
dept_city varchar2(100) ,
dept_country varchar2(100),
CONSTRAINT dept_pk PRIMARY KEY(dept_id)
);
insert into department( dept_id, dept_name, dept_city, dept_country )values(1,'hr','hyderabad','india');
insert into department( dept_id, dept_name, dept_city, dept_country )values(2,'marketing','banglore','india');
insert into department(dept_id, dept_name, dept_city, dept_country)values(3,'sales','dhaka','bangladesh');
create sequence s1
start with 1
increment by 1;
create table employee(
employee_id number(10) ,
employee_name varchar2(100) NOT NULL,
employee_age number(3) ,
employee_sal number(9,2),
dept_id number(5),
CONSTRAINT employee_pk PRIMARY KEY(employee_id),
constraint dept_fk foreign key(dept_id) references department(dept_id)
);
CREATE OR REPLACE TRIGGER trg_before_emp_insr
BEFORE INSERT
on employee_details
FOR EACH ROW
DECLARE
emp_age number;
BEGIN
IF (employee_age < 18) THEN
RAISE_APPLICATION_ERROR(-20000,'Employee age must be greater than or equal to 18.');
END IF;
END;
/
insert into employee(employee_id, employee_name, employee_age, employee_sal,dept_id )values(s1.nextval,'ravi',45,7333,1);
insert into employee(employee_id, employee_name, employee_age, employee_sal,dept_id )values(s1.nextval,'sai',74,4451,2);
insert into employee(employee_id, employee_name, employee_age, employee_sal,dept_id )values(s1.nextval,'chandu',35,9428,3);
insert into employee( employee_id,employee_name, employee_age, employee_sal,dept_id )values(s1.nextval,'raju',7,25422,2);
insert into employee( employee_id,employee_name, employee_age, employee_sal,dept_id )values(s1.nextval,'teja',36,7955,1);
select * from employee
You want to use the :NEW record to get the value from the row being inserted (and to use the EMPLOYEE table rather than EMPLOYEE_DETAILS):
CREATE OR REPLACE TRIGGER trg_before_emp_insr
BEFORE INSERT
on employee
FOR EACH ROW
BEGIN
IF (:NEW.employee_age < 18) THEN
RAISE_APPLICATION_ERROR(-20000,'Employee age must be greater than or equal to 18.');
END IF;
END;
/
db<>fiddle here
However, you should consider storing date of birth rather than age as tomorrow (or definitely next year) the age value will be outdated but storing the date of birth and calculating the age would not.
create table employee(
employee_id number(10) ,
employee_name varchar2(100) NOT NULL,
employee_dob DATE,
employee_sal number(9,2),
dept_id number(5),
CONSTRAINT employee_pk PRIMARY KEY(employee_id),
constraint dept_fk foreign key(dept_id) references department(dept_id)
);
CREATE OR REPLACE TRIGGER trg_before_emp_insr
BEFORE INSERT
on employee
FOR EACH ROW
BEGIN
IF :NEW.employee_dob > TRUNC(ADD_MONTHS(SYSDATE, -18*12)) THEN
RAISE_APPLICATION_ERROR(-20000,'Employee age must be greater than or equal to 18.');
END IF;
END;
/
db<>fiddle here
Create table emo(
Emo_id number(10) NOT NULL,
Name varchar2(100) NOT NULL,
Band var char2(2),
Emp_type varchar2(5) DEFAULT "FTE" NOT NULL
);
Should be
CREATE TABLE emo
(
Emo_id NUMBER (10) NOT NULL,
Name VARCHAR2 (100) NOT NULL,
Band VARCHAR2 (2),
Emp_type VARCHAR2 (5) DEFAULT 'FTE' NOT NULL
);
So:
not double but single quotes for column's default value
not var char2 but varchar2
I have been tasked to populate a table called Sales_Facts with a PL/SQL block but I return 0 results. The procedure is executed with out error and I run my script to populate my table but my SELECT COUNT script returns nothing. I cannot see what I am doing wrong.
Here's what I have:
CREATE TABLE Sales (
sale_ID VARCHAR2(10) NOT NULL,
salesperson_ID VARCHAR2(10) NOT NULL,
cust_ID VARCHAR2(10) NOT NULL,
sale_date DATE,
VIN VARCHAR2(20) NOT NULL,
mileage INT,
vehicle_status VARCHAR2(15),
gross_sale_price NUMBER(8,2) NOT NULL,
PRIMARY KEY (sale_ID),
CONSTRAINT FK_Customer_ID FOREIGN KEY (cust_ID) REFERENCES Customers(cust_ID),
CONSTRAINT FK_VIN_ID FOREIGN KEY (VIN) REFERENCES Sale_Vehicles(VIN));
CREATE TABLE Times (
sale_day DATE NOT NULL, --populated from Sales sale_date
day_type VARCHAR2(50) NOT NULL,
PRIMARY KEY (sale_day));
CREATE TABLE Vehicles (
vehicle_Code VARCHAR2(10),
description VARCHAR2(100),
PRIMARY KEY (vehicle_Code));
Vehicles is populated with this:
CREATE SEQUENCE veh_code_seq
MINVALUE 1
START WITH 1
INCREMENT BY 1
CACHE 20;
COMMIT;
--PL/SQL Block
SET SERVEROUTPUT ON
DECLARE
vehType VARCHAR2(50);
v_make OLTP_Vehicles.make%type;
v_model OLTP_Vehicles.model%type;
CURSOR v_type IS SELECT DISTINCT make, model FROM OLTP_Vehicles;
BEGIN
OPEN v_type;
LOOP
FETCH v_type INTO v_make, v_model;
vehType := v_make || ', ' || v_model;
INSERT INTO Vehicles (vehicle_Code, description)
VALUES (veh_code_seq.NEXTVAL, vehType);
EXIT WHEN v_type%notfound;
END LOOP;
CLOSE v_type;
END;
/
CREATE TABLE Financing_Plans (
plan_ID VARCHAR2(10) NOT NULL,
institution VARCHAR2(25) NOT NULL,
loan_type VARCHAR2(15) NOT NULL,
percentage DECIMAL(4,2) NOT NULL,
min_down NUMBER(8,2) NOT NULL,
max_loan_amt NUMBER(8,2) NOT NULL,
max_term INT NOT NULL,
PRIMARY KEY (plan_ID));
CREATE TABLE Dealerships (
dealer_ID VARCHAR2(5) NOT NULL,
location VARCHAR(30) NULL,
region_ID VARCHAR(5) NULL,
street_address VARCHAR2(100) NOT NULL,
city VARCHAR2(25) NOT NULL,
state VARCHAR2(15) NOT NULL,
zip VARCHAR2(5) NOT NULL,
phone VARCHAR2(10) NOT NULL,
sqft NUMERIC(8,2) NULL,
opened_date DATE,
manager VARCHAR2(100) NULL,
district_ID VARCHAR2(5) NOT NULL,
PRIMARY KEY (dealer_ID),
CONSTRAINT UC_Dealership UNIQUE (dealer_ID,district_ID));
CREATE TABLE Sales_Facts (
sale_day DATE NOT NULL,
vehicle_Code VARCHAR2(10) NOT NULL,
plan_ID VARCHAR2(10) NOT NULL,
dealer_ID VARCHAR2(5) NOT NULL,
vehicles_sold NUMBER(8,2) NOT NULL,
gross_sales_amt NUMBER(8,2) NOT NULL,
CONSTRAINT PK_Sales_Facts PRIMARY KEY (sale_day, vehicle_Code, plan_ID, dealer_ID),
CONSTRAINT FK_Sale_Day FOREIGN KEY(sale_day) References Times(sale_day),
CONSTRAINT FK_Vehicle_Code FOREIGN KEY(vehicle_Code) References Vehicles(vehicle_Code),
CONSTRAINT FK_Fin_Plan_ID FOREIGN KEY(plan_ID) References Financing_Plans(plan_ID),
CONSTRAINT FK_Dealer_ID FOREIGN KEY(dealer_ID) References Dealerships(dealer_ID));
And here is my procedure that is not returning any results:
CREATE OR REPLACE PROCEDURE Populate_Sales_Facts
AS
l_sale_day DATE;
l_vehicle_Code VARCHAR2(10);
l_plan_ID VARCHAR2(10);
l_dealer_ID VARCHAR2(5);
l_vehicles_sold NUMBER(8,2);
l_gross_sales_amt NUMBER(8,2);
CURSOR c1 IS SELECT sale_day,vehicle_Code,fp.plan_ID,d.dealer_ID,
COUNT (*) AS vehicles_sold,
SUM (s.gross_sale_price) AS gross_sales_amt
FROM Times t, Sales s, Financing_Plans fp, Dealerships d, Vehicles v
WHERE t.sale_day = s.sale_date
GROUP BY sale_day, vehicle_Code, fp.plan_ID, d.dealer_ID;
BEGIN
OPEN c1;
LOOP
FETCH c1 INTO l_sale_day, l_vehicle_Code, l_plan_ID, l_dealer_ID, l_vehicles_sold, l_gross_sales_amt;
EXIT WHEN c1%NOTFOUND;
IF l_vehicles_sold <> 0 THEN
INSERT INTO SALES_FACTS (sale_day,vehicle_Code,plan_ID,dealer_ID,vehicles_sold, gross_sales_amt)
VALUES (l_sale_day,l_vehicle_Code,l_plan_ID,l_dealer_ID,l_vehicles_sold,l_gross_sales_amt);
END IF;
END LOOP;
CLOSE c1;
END;
/
BEGIN
Populate_Sales_Facts;
END;
/
I was given the fields to populate the Sales table and they cannot be changed
per my requirements but I did fix my WHERE statement to pull sale_day from the Times table where equal to the sale_date in the Sales table because those are the only fields that linked. So I was able to get the table to populate but now instead of getting no more than 200 rows, I am getting 61065 rows of data. Here are my requirements: get every possible combination of the dimension tables’ primary keys and then the total vehicles sold and gross sales amount for each combination. If these values for Total_Vehicles_Sold and Gross_Sales_Amount for a combination are zero then don’t INSERT a row into the SALES_FACT table. Only insert rows for combinations of the four foreign key columns where there
were some vehicles sold. Maybe I am just misunderstanding the task but I feel like I am getting too many rows now.
This is code:
CREATE TABLE emp_where (where_clause VARCHAR2(4000));
INSERT INTO emp_where (where_clause)
VALUES ('first_name=''KING'' or department_id = 20');
commit;
CREATE OR REPLACE TYPE t_emp_rec AS OBJECT (
EMPLOYEE_ID NUMBER(4),
FIRST_NAME VARCHAR2(10),
JOB_ID VARCHAR2(9),
MANAGER_ID NUMBER(4),
HIRE_DATE DATE,
SALARY NUMBER(7,2),
DEPARTMENT_ID NUMBER(2)
);
/
CREATE OR REPLACE TYPE t_emp_tab AS TABLE OF t_emp_rec;
/
CREATE OR REPLACE FUNCTION emp_fn RETURN t_emp_tab
PIPELINED IS
l_sql VARCHAR2(32767);
l_where VARCHAR2(4000);
TYPE l_cur_type IS REF CURSOR;
l_cur l_cur_type;
l_rec employees%ROWTYPE;
BEGIN
SELECT where_clause INTO l_where FROM emp_where;
l_sql := 'SELECT * FROM employees WHERE ' || l_where;
OPEN l_cur FOR l_sql;
LOOP
FETCH l_cur
INTO l_rec;
EXIT WHEN l_cur%NOTFOUND;
PIPE ROW(t_emp_rec(EMPLOYEE_ID => l_rec.EMPLOYEE_ID
,FIRST_NAME => l_rec.FIRST_NAME
,JOB_ID => l_rec.JOB_ID
,MANAGER_ID => l_rec.MANAGER_ID
,hire_date => l_rec.hire_date
,SALARY => l_rec.SALARY
,DEPARTMENT_ID => l_rec.DEPARTMENT_ID));
END LOOP;
RETURN;
EXCEPTION
WHEN OTHERS THEN
raise_application_error(-20000, SQLERRM || chr(10) || l_sql);
END;
/
CREATE OR REPLACE VIEW emp_vw AS
UPDATE emp_where SET where_clause = 'EMPLOYEE_ID BETWEEN 100 and 200';
COMMIT;
SELECT * FROM emp_vw;
When I execute SELECT * FROM emp_vw; with this clause: EMPLOYEE_ID BETWEEN 100 and 200
Oracle gives me an error
ORA-20000: ORA-06502: PL/SQL: numeric or value error: number precision too large
SELECT * FROM employees WHERE EMPLOYEE_ID BETWEEN 100 and 200
But when I execute query itself (SELECT * FROM employees WHERE EMPLOYEE_ID BETWEEN 100 and 200) there is no error. Another scenario -
when clause is 'deparment_id = 20', executing a view is correct. But when I change '=' to '>' (department_id > 20) - numeric or value error: number precision too large.
Can someone explain me how this is happening?
If I run:
DESCRIBE employees
Then I get the output:
Name Null Type
-------------- -------- ------------
EMPLOYEE_ID NOT NULL NUMBER(6)
FIRST_NAME VARCHAR2(20)
LAST_NAME NOT NULL VARCHAR2(25)
EMAIL NOT NULL VARCHAR2(25)
PHONE_NUMBER VARCHAR2(20)
HIRE_DATE NOT NULL DATE
JOB_ID NOT NULL VARCHAR2(10)
SALARY NUMBER(8,2)
COMMISSION_PCT NUMBER(2,2)
MANAGER_ID NUMBER(6)
DEPARTMENT_ID NUMBER(4)
If you compare it to your t_emp_rec object then you will see that most of the object attributes are a smaller size than the table columns.
Change the object to have the same sizes and it should work:
CREATE OR REPLACE TYPE t_emp_rec AS OBJECT (
EMPLOYEE_ID NUMBER(6),
FIRST_NAME VARCHAR2(20),
JOB_ID VARCHAR2(10),
MANAGER_ID NUMBER(6),
HIRE_DATE DATE,
SALARY NUMBER(8,2),
DEPARTMENT_ID NUMBER(4)
);
/