 -- Chrome MySQL Admin version 4.10.0
--
-- Host: remotemysql.com
-- ------------------------------------------------------
-- Server version 8.0.13-4

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

--
-- Current Database: `tjVXopFod9`
--

-- CREATE DATABASE /*!32312 IF NOT EXISTS*/ `tjVXopFod9` /*!40100 DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci */;

-- use `tjVXopFod9`;

--
-- Table structure for table `admin`
--

DROP TABLE IF EXISTS `admin`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `admin` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `name` text NOT NULL,
  `username` varchar(200) NOT NULL,
  `password` text NOT NULL,
  `type` tinyint(1) NOT NULL COMMENT '1=Admin,2=Staff',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `admin`
--

LOCK TABLES `admin` WRITE;
/*!40000 ALTER TABLE `admin` DISABLE KEYS */;
INSERT INTO `admin` VALUES (1,'admin','admin','0192023a7bbd73250516f069df18b500',1);
/*!40000 ALTER TABLE `admin` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `assignment`
--

DROP TABLE IF EXISTS `assignment`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `assignment` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `firstname` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
  `lastname` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
  `country` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
  `age` int(10) NOT NULL,
  `department` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `assignment`
--

LOCK TABLES `assignment` WRITE;
/*!40000 ALTER TABLE `assignment` DISABLE KEYS */;
INSERT INTO `assignment` VALUES (1,'Marshal','Martin','Nigeria',300,'Science');
/*!40000 ALTER TABLE `assignment` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `courses`
--

DROP TABLE IF EXISTS `courses`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `courses` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `title` varchar(200) NOT NULL,
  `description` text NOT NULL,
  `username` varchar(255) NOT NULL,
  `password` varchar(255) NOT NULL,
  `type` tinyint(1) NOT NULL DEFAULT '2',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=13 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `courses`
--

LOCK TABLES `courses` WRITE;
/*!40000 ALTER TABLE `courses` DISABLE KEYS */;
INSERT INTO `courses` VALUES (7,'Engineering Faculty','For all Engineering Students','Engineering','5f4dcc3b5aa765d61d8327deb882cf99',2),(8,'Science Faculty','For all Science Students','Science','5f4dcc3b5aa765d61d8327deb882cf99',2),(11,'Business Faculty','For all Business Students','Business','5f4dcc3b5aa765d61d8327deb882cf99',2);
/*!40000 ALTER TABLE `courses` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `employers`
--

DROP TABLE IF EXISTS `employers`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `employers` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `title` varchar(200) NOT NULL,
  `description` text NOT NULL,
  `username` varchar(255) NOT NULL,
  `password` varchar(255) NOT NULL,
  `type` tinyint(1) NOT NULL DEFAULT '3',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `employers`
--

LOCK TABLES `employers` WRITE;
/*!40000 ALTER TABLE `employers` DISABLE KEYS */;
INSERT INTO `employers` VALUES (4,'Ada Micheal ','Engineering','ada','5f4dcc3b5aa765d61d8327deb882cf99',3),(6,'Mic','Science','mic','5f4dcc3b5aa765d61d8327deb882cf99',3),(7,'Kofi','Business','Kofi','5f4dcc3b5aa765d61d8327deb882cf99',3);
/*!40000 ALTER TABLE `employers` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `jobs`
--

DROP TABLE IF EXISTS `jobs`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `jobs` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `e_id` int(50) NOT NULL,
  `s_id` int(50) DEFAULT NULL,
  `approved_student` int(50) DEFAULT NULL,
  `title` text NOT NULL,
  `body` text NOT NULL,
  PRIMARY KEY (`id`),
  KEY `s_id` (`s_id`),
  KEY `e_id` (`e_id`),
  KEY `approved_student` (`approved_student`),
  CONSTRAINT `approved_student_foreign_key` FOREIGN KEY (`approved_student`) REFERENCES `students` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
  CONSTRAINT `employer_foreign_key` FOREIGN KEY (`e_id`) REFERENCES `employers` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
  CONSTRAINT `student_foreign_key` FOREIGN KEY (`s_id`) REFERENCES `students` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE=InnoDB AUTO_INCREMENT=18 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `jobs`
--

LOCK TABLES `jobs` WRITE;
/*!40000 ALTER TABLE `jobs` DISABLE KEYS */;
INSERT INTO `jobs` VALUES (16,7,19,NULL,'Osu company','Interns for IT assit.'),(17,6,NULL,NULL,'Available intern','All ADS students should apply');
/*!40000 ALTER TABLE `jobs` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `remarks`
--

DROP TABLE IF EXISTS `remarks`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `remarks` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `s_id` int(50) NOT NULL,
  `ss_id` int(50) NOT NULL,
  `remark` text CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
  PRIMARY KEY (`id`),
  KEY `s_id` (`s_id`),
  KEY `ss_id` (`ss_id`),
  CONSTRAINT `student_remark_foreign_key` FOREIGN KEY (`s_id`) REFERENCES `students` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
  CONSTRAINT `supervisor_remark_foreign_key` FOREIGN KEY (`ss_id`) REFERENCES `supervisors` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `remarks`
--

LOCK TABLES `remarks` WRITE;
/*!40000 ALTER TABLE `remarks` DISABLE KEYS */;
INSERT INTO `remarks` VALUES (2,15,3,'he is a fool'),(3,16,3,'good student');
/*!40000 ALTER TABLE `remarks` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `students`
--

DROP TABLE IF EXISTS `students`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `students` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `username` varchar(50) NOT NULL,
  `address` text NOT NULL,
  `course_id` int(30) NOT NULL,
  `course_approve` tinyint(1) NOT NULL DEFAULT '0',
  `company_id` int(30) DEFAULT NULL,
  `id_no` varchar(200) NOT NULL,
  `password` text NOT NULL,
  `supervisor_id` int(50) DEFAULT NULL,
  `status` tinyint(1) NOT NULL DEFAULT '1',
  `required_duration` varchar(100) NOT NULL DEFAULT '600',
  `type` tinyint(1) NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`),
  KEY `course_id` (`course_id`),
  KEY `company_id` (`company_id`),
  KEY `supervisor_id` (`supervisor_id`),
  CONSTRAINT `company_foreign_key` FOREIGN KEY (`company_id`) REFERENCES `employers` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
  CONSTRAINT `course_foreign_key` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
  CONSTRAINT `supervisor_foreign_key` FOREIGN KEY (`supervisor_id`) REFERENCES `supervisors` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE=InnoDB AUTO_INCREMENT=20 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `students`
--

LOCK TABLES `students` WRITE;
/*!40000 ALTER TABLE `students` DISABLE KEYS */;
INSERT INTO `students` VALUES (15,'  Marshal','marshal','Accra',8,1,NULL,'A93456','5f4dcc3b5aa765d61d8327deb882cf99',5,1,'600',0),(16,' Molly Maui','molly','Accra',7,0,NULL,'20E2ASKD','5f4dcc3b5aa765d61d8327deb882cf99',3,1,'600',0),(17,' Nana','nana','OSU',11,1,NULL,'44559GG','5f4dcc3b5aa765d61d8327deb882cf99',5,1,'600',0),(19,'john','john','Kcc Accra',8,0,NULL,'Ads19000fuyf','5f4dcc3b5aa765d61d8327deb882cf99',NULL,1,'600',0);
/*!40000 ALTER TABLE `students` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `supervisors`
--

DROP TABLE IF EXISTS `supervisors`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `supervisors` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `title` varchar(200) NOT NULL,
  `username` varchar(255) NOT NULL,
  `password` varchar(255) NOT NULL,
  `type` tinyint(1) NOT NULL DEFAULT '1',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `supervisors`
--

LOCK TABLES `supervisors` WRITE;
/*!40000 ALTER TABLE `supervisors` DISABLE KEYS */;
INSERT INTO `supervisors` VALUES (3,'John micheal','mich','5f4dcc3b5aa765d61d8327deb882cf99',1),(5,'Johnny Kweku','kweku','5f4dcc3b5aa765d61d8327deb882cf99',1);
/*!40000 ALTER TABLE `supervisors` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Table structure for table `timelines`
--

DROP TABLE IF EXISTS `timelines`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `timelines` (
  `id` int(30) NOT NULL AUTO_INCREMENT,
  `title` text NOT NULL,
  `body` text NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `timelines`
--

LOCK TABLES `timelines` WRITE;
/*!40000 ALTER TABLE `timelines` DISABLE KEYS */;
INSERT INTO `timelines` VALUES (1,'INTERN UPDATE','AVAIALABLE INTERN AT KORLE BU TEACHING HOSPITAL FOR SCIENCE STUDENTS (IT/COMPUTER SCIENCE).'),(13,'A new job is out','intern at osu company');
/*!40000 ALTER TABLE `timelines` ENABLE KEYS */;
UNLOCK TABLES;

/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

-- Dump completed on 2021-12-16 16:10:26

created 3 years ago

MySQL online editor

Write, Run & Share MySQL queries online using OneCompiler's MySQL online editor and compiler for free. It's one of the robust, feature-rich online editor and compiler for MySQL. Getting started with the OneCompiler's MySQL editor is really simple and pretty fast. The editor shows sample boilerplate code when you choose language as 'MySQL' and start writing queries to learn and test online without worrying about tedious process of installation.

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;