CREATE TABLE stationary (
  id INTEGER PRIMARY KEY,
  category CHAR (3) NOT NULL,
  name VARCHAR (20) NOT NULL,
  quantity INTEGER NOT NULL,
  price FLOAT NOT NULL
);

INSERT INTO stationary VALUES (1001, 'PEN', 'Pen Red', 5000, 1.23);
INSERT INTO stationary VALUES (1002, 'PEN', 'Pen Blue', 8000, 1.25);
INSERT INTO stationary VALUES (1003, 'PEN', 'Pen Black', 5000, 1.25);
INSERT INTO stationary VALUES (1004, 'PCL', 'Pencil 2B', 10000, 0.49);
INSERT INTO stationary VALUES (1005, 'PCL', 'Pencil 2H', 9000, 0.48);
INSERT INTO stationary VALUES (1006, 'PPR', 'A4 Paper', 1500, 4.5);
INSERT INTO stationary VALUES (1007,'PPR', 'A3 Paper', 2500, 6.5);

SELECT 'The AIMSTTrading Database is assigned database for this question. The tables of this database include the "Stationary" table, which contains 7 tuples of data. Each tuple represents a specific stationary item within the company\'s inventory. The "Stationary" table has 5 attributes that provide information about each item, such as the item\'s name, quantity, price, id, and category. This database serves as a centralized repository for storing and organizing the company\'s stationary-related data, allowing for efficient management and retrieval of information.' AS Description;

-- List Records
SELECT * FROM stationary;

SELECT * FROM stationary where price >= 1.0;

SELECT * FROM stationary where category = 'PEN';

UPDATE stationary SET price = price * 1.1;

SELECT * FROM stationary;

DELETE FROM stationary WHERE name = 'Pen Red';

SELECT * FROM stationary;

SELECT * FROM stationary WHERE name LIKE 'A%';

SELECT * FROM stationary WHERE name NOT LIKE 'A%';
by

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About MySQL

MySQL is a open-source, free and very popular relational database management system which is developed, distributed and supported by Oracle corporation.

Key Features:

  • Open-source relational database management systems.
  • Reliable, very fast and easy to use database server.
  • Works on client-server model.
  • Highly Secure and Scalable
  • High Performance
  • High productivity as it uses stored procedures, triggers, views to write a highly productive code.
  • Supports large databases efficiently.
  • Supports many operating systems like Linux*,CentOS*, Solaris*,Ubuntu*,Windows*, MacOS*,FreeBSD* and others.

Syntax help

Commands

1. CREATE

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

Example

CREATE TABLE EMPLOYEE (
  empId INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  dept TEXT NOT NULL
);

2. ALTER

ALTER TABLE Table_name ADD column_name datatype;

Example

INSERT INTO EMPLOYEE VALUES (0001, 'Dave', 'Sales');

3. TRUNCATE

TRUNCATE table table_name;

4. DROP

DROP TABLE table_name;

5. RENAME

RENAME TABLE table_name1 to new_table_name1;

6. COMMENT

Single-Line Comments:

 --Line1;

Multi-Line comments:

   /* Line1,
   Line2 */

DML Commands

1. INSERT

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

Note: Column names are optional.

Example

INSERT INTO EMPLOYEE VALUES (0001, 'Ava', 'Sales');

2. SELECT

SELECT column1, column2, ...
FROM table_name
[where condition];

Example

SELECT * FROM EMPLOYEE where dept ='sales';

3. UPDATE

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

Example

UPDATE EMPLOYEE SET dept = 'Sales' WHERE empId='0001';

4. DELETE

DELETE FROM table_name where condition;

Example

DELETE from EMPLOYEE where empId='0001';

Indexes

1. CREATE INDEX

  CREATE INDEX index_name on table_name(column_name);
  • To Create Unique index:
  CREATE UNIQUE INDEX index_name on table_name(column_name);

2. DROP INDEX

DROP INDEX index_name ON table_name;

Views

1. Create a View

Creating a View:
CREATE VIEW View_name AS 
Query;

2. How to call view

SELECT * FROM View_name;

3. Altering a View

ALTER View View_name AS 
Query;

4. Deleting a View

DROP VIEW View_name;

Triggers

1. Create a Trigger

CREATE TRIGGER trigger_name trigger_time trigger_event
    ON tbl_name FOR EACH ROW [trigger_order] trigger_body
/* where
trigger_time: { BEFORE | AFTER }
trigger_event: { INSERT | UPDATE | DELETE }
trigger_order: { FOLLOWS | PRECEDES } */

2. Drop a Trigger

DROP TRIGGER [IF EXISTS] trigger_name;

Stored Procedures

1. Create a Stored Procedure

CREATE PROCEDURE sp_name(p1 datatype)
BEGIN
/*Stored procedure code*/
END;

2. How to call Stored procedure

CALL sp_name;

3. How to delete stored procedure

DROP PROCEDURE sp_name;

Joins

1. INNER JOIN

SELECT * FROM TABLE1 INNER JOIN TABLE2 where condition;

2. LEFT JOIN

SELECT * FROM TABLE1 LEFT JOIN TABLE2 ON condition;

3. RIGHT JOIN

SELECT * FROM TABLE1 RIGHT JOIN TABLE2 ON condition;

4. CROSS JOIN

SELECT select_list from TABLE1 CROSS JOIN TABLE2;