Difference between revisions of "Netbeans/C3/Connecting-to-a-MySQL-Database/English-timed"

Revision as of 13:11, 10 March 2017

Time	Narration
00:00	Hello everyone.
00:02	Welcome to the tutorial on 'Connecting to a MySQL Database'.
00:07	In this tutorial, we will look at:
00:09	Configuring MySQL server properties
00:14	Starting the MySQL server
00:17	Creating and connecting to the database
00:20	Creating database tables under which we will explore two methods:
00:26	# using the sql editor
00:29	# using the create table dialogue and finally,
00:33	* Running an SQL script.
00:37	For this demonstration, I am using the Linux Operating System Ubuntu version 12.04
00:44	and Netbeans IDE version 7.1.1.
00:48	You also need the Java Development Kit (JDK) version 6
00:54	and MySQL database server.
00:57	To learn this tutorial, basic understanding of database management is necessary.
01:03	To know more, watch PHP and MySQL spoken tutorials on the link shown.
01:10	Other standard programming terminologies have been used in this tutorial.
01:16	This tutorial demonstrates how to setup a connection to a MySQL database from the Netbeans IDE.
01:24	Once connected, we will work with MySQL in the IDE's Database Explorer.
01:31	Let us switch to the IDE now.
01:36	Netbeans IDE comes bundled with support for the MySQL RDBMS.
01:42	Before you access MySQL database server in Netbeans, you must configure the MySQL server properties.
01:51	Right-click the Databases node in the Services window.
01:56	Choose Register MySQL Server to open the MySQL server properties dialogue-box.
02:05	Confirm that the Server Host Name and the Port are correct.
02:10	Notice that the IDE enters "localhost" as the default server host name.
02:18	3306 is the default server port number.
02:23	Enter the Administrator Username, if not displayed.
02:27	On my system, the Administrator Username is "root".
02:33	Enter the Administrator password.
02:36	On my system, the password is blank.
02:40	Click the Admin Properties tab at the top of the dialog-box.
02:45	This allows you to enter information for controlling the MySQL server.
02:51	In the Path/URL to admin tool: field,
02:56	type or browse to the location of your 'MySQL Administration' application.
03:02	On my system, the location to the tool is /usr/bin/mysqladmin.
03:12	Type any arguments for the admin tool in the Arguments field.
03:18	This can also be left blank.
03:22	In the Path to start command: field,
03:25	type or browse to the location of the MySQL start command.
03:29	On my system it is: /usr/bin/mysqld_safe.
03:38	Type any arguments for the start command in the Arguments field.
03:42	Here, I will type: -u space root space start.
03:51	In the Path to stop command:,
03:54	type or browse to the location of the MySQL stop command.
03:58	This is usually the path to the mysqladmin' in the bin folder of the MySQL installation directory.
04:06	On my system, this is: /usr/bin/mysqladmin.
04:14	If the command is mysqladmin, in the Arguments field, type: -u space root space stop.
04:27	When finished, the Admin Properties tab should resemble what is shown on the screen.
04:33	Click OK.
04:36	First ensure that the MySQL database server is running on your machine.
04:42	The MySQL server node in the Service window, indicates whether the MySQL database server is connected.
04:52	After making sure that it is running, right-click the Databases >> MySQL server node and choose Connect.
05:05	When expanded, the MySQL server node displays all the available MySQL databases.
05:13	A common way of interacting with databases is through an SQL Editor.
05:19	Netbeans has a built-in SQL Editor for this purpose.
05:23	You can access this by right-clicking on the connection node.
05:29	Let us now create a new database instance using the SQL Editor.
05:34	In the Services window, right-click the MySQL server node and choose Create Database.
05:44	In the Create Database dialogue, type the name of the new database.
05:50	I will name this "mynewdatabase".
05:56	You can also grant full access to a given user.
06:01	By default, only the admin user has the permissions to perform certain commands.
06:08	The drop-down list allows you to assign these permissions to a specified user.
06:13	It is a good practice to grant users most permissions, except to drop tables
06:18	and allow users to modify only those databases that are created by their application.
06:25	But for now, we will leave the check-box unselected.
06:30	Click OK.
06:34	Let us now create tables, populate them with data and modify the data maintained in tables.
06:41	"mynewdatabase" is currently empty.
06:44	Let us explore the first method to input data in the tables.
06:48	In the Database explorer, expand the mynewdatabase connection node.
06:58	There are three sub folders:
07:00	Tables, Views and Procedures.
07:04	Right-click the Tables folder and choose Execute Command.
07:11	A blank canvas opens in the SQL Editor, in the main window.
07:16	Let us type a simple query in this SQL editor.
07:30	I have now typed a simple query in the SQL editor.
07:36	This is a table definition for the Counselor table, we are about to create.
07:42	To execute this query, either right-click the Run SQL icon in the task bar at the top
07:51	or right-click within the SQL Editor and choose Run Statement.
08:00	The IDE generates the Counselor table in the database.
08:04	You can see this message in the Output window
08:12	which says that the command was executed successfully.
08:17	To verify these changes, right-click the Tables node in the Database Explorer.
08:25	Choose Refresh.
08:28	This updates the current status of the specified database.
08:32	The new Counselor table now displays under the Tables option.
08:40	If you expand the Table node, you can see the columns that you created.
08:46	Let us now explore the next method to input data in the tables,
08:51	i.e. using the Create Table Dialog.
08:54	In the Database Explorer, right-click the Tables node and choose Create Table.
09:03	The Create Table dialogue opens.
09:06	In the Table name text field, type "Subject".
09:13	Click on Add Column .
09:16	In the Add Column dialogue, type "id" in the Name field.
09:22	Choose SMALLINT for data-type from the Type drop-down menu.
09:30	Select the Primary Key check-box in the Add Column dialog-box.
09:35	This is to specify the primary-key for your table.
09:39	Note that when you select the Primary Key check-box, the Index and Unique check-boxes are automatically selected;
09:49	also the Null check-box is deselected.
09:53	This is because primary-keys are used to identify an unique row in the database.
09:59	Click OK.
10:03	Repeat this procedure to add the remaining columns, as shown on the screen.
10:09	We have now created a table named Subject that will hold data for Name, Description and Counselor ID.
10:20	Click OK.
10:23	By running SQL queries on a database, we can add, modify and delete data maintained in database structures.
10:32	Let us add a new record to the Counselor table.
10:35	Choose Execute Command from the Tables node context menu.
10:43	A new SQL Editor opens in the main window.
10:47	In the SQL Editor, let us type a simple query.
11:00	To execute this query, right-click within the source editor and choose Run Statement.
11:07	Let us now verify if the new record has been added to the table.
11:12	Right-click the Counselor table and choose View Data.
11:18	A new SQL Editor opens in the main window.
11:21	A query to select all data from the table is automatically generated.
11:27	The results of this statement are displayed in a table view below the workspace.
11:41	Note that a new row has been added with the data we just supplied.
11:46	We can also run an external SQL script directly in the IDE.
11:52	I have a SQL query here for demonstrative purposes.
11:59	This script creates two tables similar to the ones we have just created.
12:04	i.e. Counselor and Subject.
12:09	Because the script overwrites these tables,
12:12	we will delete these two tables if they already exist.
12:16	To delete tables, right-click on the Counselor table
12:21	and choose Delete.
12:24	Click Yes in the Confirm Object Deletion dialogue-box.
12:31	Repeat the same for the Subject table.
12:38	Now, open the existing SQL query file from your system.
12:43	From the File menu, choose Open File.
12:48	Browse to the location containing this file.
12:54	The script automatically opens in the SQL editor.
12:59	Make sure the connection to mynewdatabase is selected.
13:03	Check this from the C onnection drop-down in the toolbar, at the top of the editor.
13:13	Click the Run SQL button in the task bar.
13:17	And the script is executed against the selected database.
13:22	Right-click the mynewdatabase connection node and choose Refresh.
13:28	This updates the database component to the current status of the specified database.
13:34	Right-click on any of these tables now and choose View Data.
13:41	And, below the workspace, you can see the data contained in the new tables.
13:52	In this tutorial, you learnt to-
13:54	configure MySQL on your computer
13:57	set up a connection to the database server from the IDE
14:02	create, delete, modify data and
14:06	run SQL queries.
14:10	As an assignment,create another database instance with tables.
14:15	Populate these tables with necessary data to maintain your personal book library.
14:21	And, run these SQL statements to view data.
14:29	I have created a similar database which maintains details of my personal movie library.
14:37	Your assignment should resemble this.
14:44	Watch the video available at the link shown on the screen.
14:48	It summarizes the Spoken Tutorial project.
14:51	If you do not have good bandwidth, you can download and watch it.
14:56	The Spoken Tutorial project team: * conducts workshops using Spoken Tutorials.
15:01	Gives certificates to those who pass an online test.
15:04	For more details, please write to: contact@spoken-tutorial.org
15:10	Spoken Tutorial project is a part of the Talk to a Teacher project.
15:15	It is supported by the National Mission on education through ICT, MHRD, Government of India.
15:20	More information on this mission is available at the link provided here.
15:27	This tutorial has been contributed by IT for Change.
15:30	Thank you.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Sandhya.np14

Difference between revisions of "Netbeans/C3/Connecting-to-a-MySQL-Database/English-timed"

Revision as of 13:11, 10 March 2017

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@@ Line 18: / Line 18: @@
 |-
 |00:09
-|* Configuring '''MySQL''' server properties
+|Configuring '''MySQL''' server properties
 |-
 | 00:14
-|* Starting the '''MySQL''' server
+|Starting the '''MySQL''' server
 |-
 |00:17
-|* Creating and connecting to the '''database'''
+|Creating and connecting to the '''database'''
 |-
 | 00:20
-|* Creating '''database table'''s under which we will explore two methods:
+| Creating '''database table'''s under which we will explore two methods:
 |-
@@ Line 356: / Line 356: @@
 |-
 | 08:40
 |If you expand the '''Table''' node, you can see the '''column'''s that you created.
 |-
 | 08:46
 |Let us now explore the next method to input data in the tables,
 |-
 | 08:51
 |i.e. using the '''Create Table''' Dialog.
 |-
 | 08:54
+|In the '''Database''' Explorer, right-click the '''Tables''' node and choose '''Create Table. '''
-|In the '''Database''' Explorer, right-click the '''Tables''' node and choose '''Create Table. '''
 |-
 | 09:03
 |The '''Create Table''' dialogue opens.
 |-
 | 09:06
+|In the '''Table name''' text field, type "Subject".
-|In the '''Table name''' text field, type "Subject".
 |-
 | 09:13
 |Click on '''Add Column '''.
 |-
 | 09:16
+|In the '''Add Column''' dialogue, type "id" in the '''Name''' field.
-|In the '''Add Column''' dialogue, type "id" in the '''Name''' field.
 |-
 | 09:22
 |Choose '''SMALLINT''' for data-type from the '''Type''' drop-down menu.
 |-
 | 09:30
+|Select the '''Primary Key''' check-box in the '''Add Column''' dialog-box.
-|Select the '''Primary Key''' check-box in the '''Add Column''' dialog-box.
 |-
 | 09:35
 |This is to specify the primary-key for your table.
 |-
 | 09:39
 |Note that when you select the '''Primary Key''' check-box, the '''Index''' and '''Unique''' check-boxes are automatically selected;
 |-
 | 09:49
 |also the '''Null''' check-box is deselected.
 |-
 | 09:53
+|This is because primary-keys are used to identify an unique row in the '''database. '''
-|This is because primary-keys are used to identify an unique row in the '''database. '''
 |-
 | 09:59
 |Click '''OK'''.
 |-
 | 10:03
 |Repeat this procedure to add the remaining columns, as shown on the screen.
 |-
 | 10:09
 |We have now created a table named '''Subject''' that will hold data for '''Name, Description''' and '''Counselor ID'''.
 |-
 | 10:20
 |Click '''OK. '''
 |-
 | 10:23
 |By running '''SQL querie'''s on a database, we can add, modify and delete data maintained in '''database structure'''s.
 |-
 | 10:32
 |Let us add a new '''record''' to the '''Counselor''' table.
 |-
 | 10:35
 |Choose '''Execute Command''' from the '''Tables''' node context menu.
 |-
 | 10:43
 |A new '''SQL Editor''' opens in the main window.
 |-
 | 10:47
+|In the '''SQL Editor''', let us type a simple '''query'''.
-|In the '''SQL Editor''', let us type a simple '''query'''.
 |-
 | 11:00
 | To execute this query, right-click within the '''source editor''' and choose '''Run Statement'''.
 |-
 | 11:07
 |Let us now verify if the new '''record''' has been added to the '''table'''.
 |-
 | 11:12
 |Right-click the '''Counselor''' table and choose '''View Data. '''
 |-
 | 11:18
 |A new '''SQL Editor''' opens in the main window.
 |-
 | 11:21
 |A query to select all data from the table is automatically generated.
 |-
 | 11:27
 |The results of this statement are displayed in a '''table view''' below the '''workspace'''.
 |-
 | 11:41
 |Note that a new row has been added with the data we just supplied.
 |-
 | 11:46
 |We can also run an external '''SQL''' script directly in the '''IDE. '''
 |-
 | 11:52
 |I have a '''SQL''' query here for demonstrative purposes.
 |-
 | 11:59
 |This script creates two tables similar to the ones we have just created.
 |-
 | 12:04
 |i.e. '''Counselor''' and '''Subject'''.
 |-
 | 12:09
 |Because the script overwrites these tables,
 |-
 | 12:12
 |we will delete these two tables if they already exist.
 |-
 | 12:16
 |To delete tables, right-click on the '''Counselor''' table
 |-
 | 12:21
 |and choose '''Delete.'''
 |-
 | 12:24
 |Click '''Yes''' in the '''Confirm Object Deletion''' dialogue-box.
 |-
 | 12:31
 |Repeat the same for the '''Subject''' table.
 |-
 | 12:38
 |Now, open the existing '''SQL''' query file from your system.
 |-
 | 12:43
 |From the '''File''' menu, choose '''Open File.'''
 |-
 | 12:48
 |Browse to the location containing this file.
 |-
 | 12:54
 |The script automatically opens in the '''SQL editor'''.
 |-
 | 12:59
 |Make sure the connection to '''mynewdatabase''' is selected.
 |-
 | 13:03
 |Check this from the '''C onnection''' drop-down in the toolbar, at the top of the editor.
 |-
 | 13:13
 |Click the '''Run SQL'''  button in the task bar.
 |-
 | 13:17
 |And the script is executed against the selected database.
 |-
 | 13:22
 |Right-click the '''mynewdatabase''' connection node and choose '''Refresh. '''
 |-
 | 13:28
 |This updates the database component to the current status of the specified database.
 |-
 | 13:34
 |Right-click on any of these tables now and choose '''View Data.'''
 |-
 | 13:41
 |And, below the '''workspace''', you can see the data contained in the new tables.
 |-
 | 13:52
 |In this tutorial, you learnt to-
 |-
 | 13:54
+|configure '''MySQL''' on your computer
-|* configure '''MySQL''' on your computer
 |-
 | 13:57
+|set up a connection to the '''database server''' from the '''IDE '''
-|* set up a connection to the '''database server''' from the '''IDE '''
 |-
 | 14:02
+|create, delete, modify data and
-|* create, delete, modify data and
 |-
 | 14:06
 |'''run''' SQL queries.
 |-
 | 14:10
+|As an assignment,create another database instance with tables.
-|As an assignment,
 |-
-| 14:11
-| create another database instance with tables.
-|-
 | 14:15
+|Populate these tables with necessary data to maintain your personal book library.
-| Populate these tables with necessary data to maintain your personal book library.
 |-
 | 14:21
 |And, '''run''' these SQL statements to view '''data'''.
 |-
 | 14:29
 |I have created a similar database which maintains details of my personal movie library.
 |-
 | 14:37
 |Your assignment should resemble this.
 |-
 | 14:44
 |Watch the video available at the link shown on the screen.
 |-
 | 14:48
 |It summarizes the Spoken Tutorial project.
 |-
 | 14:51
 |If you do not have good bandwidth, you can download and watch it.
 |-
 | 14:56
 |The Spoken Tutorial project team: * conducts workshops using Spoken Tutorials.
 |-
 | 15:01
+|Gives certificates to those who pass an online test.
-|* Gives certificates to those who pass an online test.
 |-
 | 15:04
 |For more details, please write to:
 '''contact@spoken-tutorial.org'''
 |-
 | 15:10
 |'''Spoken Tutorial''' project is a part of the '''Talk to a Teacher''' project.
 |-
 | 15:15
 | It is supported by the National Mission on education through ICT, MHRD, Government  of India.
 |-
 | 15:20
 |More information on this mission is available at the link provided here.
 |-
 | 15:27
 |This tutorial has been  contributed by '''IT for Change'''.
 |-
 | 15:30
 |Thank you.