PHP-and-MySQL/C3/MySQL-Part-1/English-timed

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Time Narration
00:01 Hi everyone!
00:03 This is a pure My SQL php tutorial.
00:06 I will teach you the basics of connecting, retrieving data, handling errors and modifying data.
00:12 So, that will cover some SQL code and some SQL queries.
00:17 Ok! Lets start.
00:19 Here I am going to show the directory structure of "mysql"
00:23 and we will create a couple of files here.
00:29 I will create the first file and call it "connect.php".
00:33 I will come here, click on the folder called "mysql" and Save this as "connect.php",
00:39 Now here we will create a separate file and include with every page that we use.
00:45 This is a lot easier to connect to your database,
00:48 What we will do is type our "include" function and specify this file.
00:53 I will create another file which is my main "mysql" file
00:57 with a code that I will show you all.
00:59 Ok, so I have got my mysql dot php open.
01:03 This is php codes and we need the php tags and the same will connect to php.
01:10 I will explain this "include" function in a minute.
01:16 First, I will teach you how to connect to the database.
01:20 If you don't know where you have it stored on your web server, then I suggest you check out an application called phpmyadmin.
01:28 It is a database interface php written program or in other words a script.
01:35 Here we will look at the inside of my database, my service.
01:41 Rather my server, My SQL server. It gives our table information, our database information and information about my server etc etc.
01:55 Although, we don't need to know about it, this is a good start to a program, if you are just starting to use a php mysql or just mysql in general.
02:06 It is a good way to start interfacing with your database, instead of using the command line to do things.
02:13 Using command line could be difficult for the first timers.
02:18 Ok, so what we see here are, our databases.
02:23 I have got one called "phpacademy" and I have got one called "phplogin" which I mentioned in another tutorial that I have created.
02:31 The others are just a standard.
02:34 They are just for holding data.
02:36 Don't delete them.
02:38 All you need to do is create new databases.
02:41 To do this, you have got a simple box here.
02:45 We are just going to create databases.
02:47 I will work within my php academy database for now.
02:51 It is a lot easier.
02:53 So its creating a database now.
02:55 It is simple.
02:56 You type in the name and click on "Create".
02:58 My php has already been created here.
03:01 So I will use this one.
03:02 Click on it and you can see that there are several tables inside.
03:08 This is denoted by the symbol here when using phpmyadmin.
03:15 This is guestbook from my guestbook tutorial.
03:21 Now I will create a new table on this database for the specifics of this tutorial and I shall call it "people".
03:30 The number of fields is quite important.
03:33 You can't leave this blank.
03:35 The number of fields on your table is for storing each column of data.
03:42 For example, the first one usually when you are dealing with records, you can have an ID which is a numerical value.
03:51 So it is a number that is going to increment each time.
03:56 It will allow you to reference your records being stored individually by the unique number.
04:02 And usually set this to the primary key.
04:06 If you are not familiar with the databases, you need to start looking out for terms like primary key.
04:14 I will not be dealing with secondary keys because its quite flexible way to do this anyway with mysql database.
04:22 Just read up on databases in general, if you have Microsoft access or any other database .
04:29 I suggest you to learn about groups of database.
04:34 Ok, so the number of fields depends on how much data you want to store and what data you want to store.
04:39 Usually when I am creating fields, I will bring out an usual blank document.
04:44 And I will start by typing out the fields that I want.
04:47 The first one is always going be ID.
04:50 This is a self incrementing value every time I create a new record.
04:55 So it will be 1 for the first record, 2,3,4 and the data will be stored after this.
05:00 It is a very useful field.
05:02 Since my table is called "people", I will store some data about people.
05:08 So I will first type in the firstname and then I will type in the lastname and then the age and the gender.
05:17 We can leave it there for now, to keep it simple.
05:20 So here we can see that we have got 5 fields.
05:23 I shall go back here and type in 5 and click "Go".
05:28 It will also be great to see a pop up here in a minute.
05:31 No you won't because we haven't created our field names yet.
05:35 Ok! We have a standard here.
05:38 There are a lot of options for these.
05:40 But, a field is a fieldname.
05:42 So the first one is going to be "ID".
05:45 The type is the data type, that you want to store this field in.
05:49 Anything that goes into it must be added here to this datatype.
05:54 "varchar" which stands for variable characters is quite common. It is a very useful one and it requires a length.
06:00 We can have 25 characters long here.
06:03 50 characters long.
06:02 Or 100 characters long.
06:04 Or 1 character long.
06:07 Actually we are just storing the type and the length of the data stored.
06:14 It helps in storing, for example your firstname.
06:17 Lets say our fieldname here is "firstname" and I have a "varchar".
06:24 There is no point in typing in 500 characters because we will be using unnecessary amount of data.
06:32 A typical firstname will be no more than 25 characters.
06:36 Even if it is, it will not be more than 30 or 35 characters.
06:41 But for now I will store my "firstname" as 20 to 25 characters and I will put 20 here.
06:48 Our "ID" will be an integer because it is a number.
06:53 It will be self incrementing.
06:55 This will be 1,2,3,4
06:57 The amount of records we use.
07:00 And we have some other options here.
07:03 That is here is primary key.
07:05 We are going to select it and at extra, we can see that we got "auto underscore increment".
07:11 This is an auto increment.
07:13 It will give this particular function.
07:16 Whenever you enter a new record, this will also automatically go up.
07:21 So here we have "firstname".
07:23 We have "lastname" and again I will set this as 30.
07:27 And what else do we have???
07:29 We have "age" and obviously this is an integer and we have "gender".
07:34 Ok.
07:35 Now here instead of "age", I will say say "Date of birth".
07:40 So this is Date of Birth.
07:43 I will set this as date.
07:45 Here I am trying to find a date datatype and I will see how this works.
07:51 So our length for date doesn't have to be set here.
07:54 We have a standard format for this. So we don't have to worry about that.
07:58 Now I will set the "gender" as "varchar" of character 1.
08:05 Now we can store "M" for male and "F" for female.
08:12 Ok. If we go across here, we can see that there are a lots of options.
08:16 You can comment this yourself.
08:19 You can remind yourself what this field does.
08:22 But usually name your fieldname appropriately so you know what data you are saving.
08:28 Ok. Here I will click on "Save" and you can see that "people" has appeared here.
08:35 This will ask you a query here.
08:38 Now when I was talking about command line earlier, this is what you have to type to create that.
08:46 However, we have used a graphic user interface to save ours.
08:50 We can see down here, we have our fields, our types and our collation attributes, null data for example.
08:59 The default value that is stored as.... say for example if you had a field saying "Has the user registered?"
09:07 Or anything of your choice. You could use the default here too.
09:11 For example if I wanted to store everyone, I have registered here as male by default or female by default, I could type "M" or "F" here.
09:21 And we have auto increment here and also some other data that we don't need to know about in this tutorial.
09:28 Ok, here we have created our table and if you go in part II of this, I will show you how to insert some data and also how to retrieve this data from your database using php.
09:40 Join me in part 2. This is Evan Varkey dubbing for the Spoken Tutorial Project. (Script contributed by Juanita Jayakar).

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Minal, PoojaMoolya, Pratik kamble, Sakinashaikh, Sandhya.np14, Sneha