CREATE table food(
  name TEXT NOT NULL,
  calories INT,
  carbs INT, 
  protein REAL,
  fat REAL,
  place TEXT NOT NULL);

INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('mcplant',429,40,19,20,'mcdonalds');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('vegetable deluxe',361,51,8.8,12,'mcdonalds');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('spicy veggie one',365,59,8.7,8.8,'mcdonalds');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('veggie dippers 4pc',321,41,6.6,13,'mcdonalds');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('mc fries med',337,42,3.3,17,'mcdonalds');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('side salad',18,2.1,0.9,0.5,'mcdonalds');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('cookie crumble mcflurry',356,51,6.2,14,'mcdonalds');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('mc med fanta',76,18,0,0,'mcdonalds');

INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('plant based whopper',555,55.1,24.3,27,'burger king');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('vegan royale',571,52.4,17.1,30.8,'burger king');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('bk fries large',382,46.3,4.9,17.8,'burger king');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('vegan nuggets 6pc',243,21.5,7.9,12.9,'burger king');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('onion rings 9pc',337,42,6.9,14.7,'burger king');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('bk med fanta',86,20.5,0,0,'burger king');


INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('plant patty',371,50,18,10,'subway');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('veggie delite',217,43,7.6,1.3,'subway');

INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('vegan burger',450,45.2,16.4,18,'kfc');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('kfc fries large ',345,49.1,4.7,16.6,'kfc');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('vegan burger',450,45.2,16.4,18,'kfc');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('veggie salad',235,25.5,6,6.6,'kfc');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('club orange reg',160,39,0,0,'kfc');
INSERT INTO food(name,calories,carbs,protein,fat,place) 
VALUES ('chocolate sundae',210,31.3,3.5,7.7,'kfc');
SELECT * FROM food;
by

PostgreSQL online editor

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About PostgreSQL

PostgreSQL is a open source relational database system and is also knows as Postgres.

Key Features:

  • Postgres is not only free and open-source but also it is highly extensible.
  • Custom Data types and funtions from various programming languaues can be introduced and the good part is compiling entire database is not required.
  • ACID(Atomicity, Consistency, Isolation, Durability) compliant.
  • First DBMS which implemented Multi-version concurrency control (MVCC) feature.
  • It's the default database server for MacOS.
  • It supports all major operating systems like Linux, Windows, OpenBSD,FreeBSD etc.

Syntax help

1. CREATE

CREATE command is used to create a table, schema or an index.

Syntax:

         CREATE TABLE table_name (
                column1 datatype,
                column2 datatype,
                ....);

2. ALTER

ALTER command is used to add, modify or delete columns or constraints from the database table.

Syntax

ALTER TABLE Table_name ADD column_name datatype;

3. TRUNCATE:

TRUNCATE command is used to delete the data present in the table but this will not delete the table.

Syntax

TRUNCATE table table_name;

4. DROP

DROP command is used to delete the table along with its data.

Syntax

DROP TABLE table_name;

5. RENAME

RENAME command is used to rename the table name.

Syntax

ALTER TABLE table_name1 RENAME to new_table_name1;

6. INSERT

INSERT Statement is used to insert new records into the database table.

Syntax

INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);

7. SELECT

Select statement is used to select data from database tables.

Syntax:

SELECT column1, column2, ...
FROM table_name;

8. UPDATE

UPDATE statement is used to modify the existing values of records present in the database table.

Syntax

UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;

9. DELETE

DELETE statement is used to delete the existing records present in the database table.

Syntax

DELETE FROM table_name where condition;