1 00:00:02,150 --> 00:00:05,430 So enough of the theory for now, 2 00:00:05,430 --> 00:00:07,980 let's install MongoDB and 3 00:00:07,980 --> 00:00:11,630 all the tools we need for spinning up databases, 4 00:00:11,630 --> 00:00:13,800 for interacting with databases, 5 00:00:13,800 --> 00:00:17,943 and the best place to start with that is Mongodb.com. 6 00:00:19,030 --> 00:00:23,600 Now on this page, you got various offerings, 7 00:00:23,600 --> 00:00:27,060 you've got cloud services and you've got software. 8 00:00:27,060 --> 00:00:32,060 Now, cloud services are in the end, managed MongoDB 9 00:00:32,557 --> 00:00:35,010 servers running on some cloud machines. 10 00:00:35,010 --> 00:00:37,720 So hosted by MongoDB company 11 00:00:37,720 --> 00:00:41,754 And we'll take a look at some of these parts 12 00:00:41,754 --> 00:00:42,587 later in the course 13 00:00:42,587 --> 00:00:45,400 for the moment, let's focus on software, 14 00:00:45,400 --> 00:00:50,400 which is software, We install locally on our system. 15 00:00:50,400 --> 00:00:51,600 Now in this lecture, 16 00:00:51,600 --> 00:00:55,000 I'll start with macOS, in the next lecture, 17 00:00:55,000 --> 00:00:58,605 I'll show you how to install and start MongoDB, 18 00:00:58,605 --> 00:01:00,813 and the MongoDB server on Windows. 19 00:01:01,780 --> 00:01:05,269 For Linux, I unfortunately don't have a Linux machine. 20 00:01:05,269 --> 00:01:06,230 So therefore, 21 00:01:06,230 --> 00:01:09,107 I have to point you at the official docs and therefore, 22 00:01:09,107 --> 00:01:10,730 you should actually stick around 23 00:01:10,730 --> 00:01:13,000 for a couple of extra seconds here 24 00:01:13,000 --> 00:01:14,770 even if you are not using Mac, 25 00:01:14,770 --> 00:01:17,450 because I want to dive into those docs together with you 26 00:01:17,450 --> 00:01:20,472 first before we then do continue 27 00:01:20,472 --> 00:01:23,550 with the macOS setup in this lecture here. 28 00:01:23,550 --> 00:01:25,850 But first of all, let's take a closer look at the software 29 00:01:25,850 --> 00:01:28,400 where we can install. 30 00:01:28,400 --> 00:01:29,490 Most importantly, 31 00:01:29,490 --> 00:01:33,560 we've got a community server and an enterprise server. 32 00:01:33,560 --> 00:01:37,940 Now the community server is a free version of MongoDB 33 00:01:37,940 --> 00:01:40,750 of all you need for working with MongoDB 34 00:01:40,750 --> 00:01:44,303 And that's the version we're going to use in this course. 35 00:01:46,140 --> 00:01:51,140 The enterprise server adds more additional enterprise level 36 00:01:51,810 --> 00:01:56,570 features, but this does not affect how MongoDB works 37 00:01:56,570 --> 00:01:58,740 or which command you can execute. 38 00:01:58,740 --> 00:01:59,573 Instead here, 39 00:01:59,573 --> 00:02:03,210 we're talking about additional configuration or security 40 00:02:03,210 --> 00:02:05,480 features that might matter to you 41 00:02:05,480 --> 00:02:08,180 if you are a big enterprise. 42 00:02:08,180 --> 00:02:11,250 But for developing with MongoDB, 43 00:02:11,250 --> 00:02:13,110 the community server is all we need 44 00:02:13,110 --> 00:02:16,360 and when it comes to deploying MongoDB, 45 00:02:16,360 --> 00:02:19,593 we'll take a look at these cloud offerings again, later. 46 00:02:20,530 --> 00:02:22,000 Now, we also got more tools. 47 00:02:22,000 --> 00:02:25,830 Most importantly Compass is also noteworthy. 48 00:02:25,830 --> 00:02:30,830 It's a graphical user interface that allows you to interact 49 00:02:31,080 --> 00:02:34,800 with your database and to view the data in your database. 50 00:02:34,800 --> 00:02:39,030 It's a little bit like MySQL workbench for MySQL, 51 00:02:39,030 --> 00:02:42,850 if you've worked with that, but we'll ignore it for now. 52 00:02:42,850 --> 00:02:45,750 Instead, we'll install the community server 53 00:02:45,750 --> 00:02:47,500 and for this we can click on it 54 00:02:47,500 --> 00:02:49,720 and we should be taken to a page that looks 55 00:02:49,720 --> 00:02:51,700 something like that. 56 00:02:51,700 --> 00:02:54,670 Here you can select the version and I'll use the latest 57 00:02:54,670 --> 00:02:56,020 stable one. 58 00:02:56,020 --> 00:02:58,840 And then your operating system, actually, 59 00:02:58,840 --> 00:03:02,370 your operating system should already be preselected, 60 00:03:02,370 --> 00:03:04,670 but you can select from a wide range 61 00:03:04,670 --> 00:03:06,610 of operating systems here 62 00:03:06,610 --> 00:03:10,750 including windows and a bunch of Linux distributions to make 63 00:03:10,750 --> 00:03:14,143 sure you're downloading MongoDB for the correct system. 64 00:03:15,360 --> 00:03:18,791 And then you can click this download link here to start the 65 00:03:18,791 --> 00:03:23,791 download and download MongoDB or these core tools that you 66 00:03:23,810 --> 00:03:25,693 need onto your system. 67 00:03:26,532 --> 00:03:29,690 Now we'll take a look at what we downloaded there in a 68 00:03:29,690 --> 00:03:33,410 second, but for the moment, let's go to the docs here, 69 00:03:33,410 --> 00:03:35,080 the documentation, 70 00:03:35,080 --> 00:03:38,270 and here we want to go to the server documentation, 71 00:03:38,270 --> 00:03:40,880 which actually is a great resource 72 00:03:40,880 --> 00:03:44,480 to look up MongoDB features in general, 73 00:03:44,480 --> 00:03:45,990 and we're going to go through 74 00:03:45,990 --> 00:03:47,770 all these key features throughout 75 00:03:47,770 --> 00:03:49,670 this course, for the moment, 76 00:03:49,670 --> 00:03:52,233 Let's dive into the installation documentation, 77 00:03:53,760 --> 00:03:56,650 and here we want to view the docs for installing the 78 00:03:56,650 --> 00:03:57,810 community edition. 79 00:03:57,810 --> 00:04:02,710 And now you can choose the guides for your operating system. 80 00:04:02,710 --> 00:04:06,470 And it's a great idea to go through these written guides. 81 00:04:06,470 --> 00:04:08,070 In addition to this video, 82 00:04:08,070 --> 00:04:11,633 especially if you should get stuck, or if you are on Linux. 83 00:04:15,308 --> 00:04:17,190 Now, if we install it on macOS 84 00:04:17,190 --> 00:04:18,660 we've got different ways of 85 00:04:18,660 --> 00:04:20,300 installing MongoDB, 86 00:04:20,300 --> 00:04:22,920 we could also install it with Homebrew, 87 00:04:22,920 --> 00:04:26,460 which is a command line tool. You can run on your system, 88 00:04:26,460 --> 00:04:29,600 but we did actually download this Tarball. 89 00:04:29,600 --> 00:04:32,810 So we're going to go through these installation steps here 90 00:04:34,030 --> 00:04:35,610 and now in there, we, first of all, 91 00:04:35,610 --> 00:04:38,223 have to download this Tarball. 92 00:04:38,223 --> 00:04:40,440 There's a zipped folder in the end, 93 00:04:40,440 --> 00:04:42,840 which we did a couple of seconds ago. 94 00:04:42,840 --> 00:04:44,560 Then we have to unzip it, 95 00:04:44,560 --> 00:04:46,950 which you can do as instructed here, 96 00:04:46,950 --> 00:04:48,900 but even easier than that, 97 00:04:48,900 --> 00:04:53,060 you can also just locate that downloaded TGZ file, 98 00:04:53,060 --> 00:04:56,790 which in the end just unzipped file and double click on 99 00:04:56,790 --> 00:04:57,910 it in finder 100 00:04:58,900 --> 00:05:02,280 here, I moved it into some software folder, 101 00:05:02,280 --> 00:05:05,930 which I created somewhere in my user folder on MacOS 102 00:05:05,930 --> 00:05:09,350 but you can move and extract it anywhere you want. 103 00:05:09,350 --> 00:05:12,290 Then I'll delete the zip file. And then here, 104 00:05:12,290 --> 00:05:15,250 I got a folder with a couple of files in it, 105 00:05:15,250 --> 00:05:18,090 especially with a bin folder inside of it, 106 00:05:18,090 --> 00:05:23,090 where we then got a variety of executable files in the end. 107 00:05:24,500 --> 00:05:25,540 And for us, 108 00:05:25,540 --> 00:05:28,480 the most important files will be the MongoD 109 00:05:28,480 --> 00:05:30,423 and the Mongo file. 110 00:05:34,540 --> 00:05:38,690 Mongo D will be an executable file that actually allows us 111 00:05:38,690 --> 00:05:42,250 to start the MongoDB database server, 112 00:05:42,250 --> 00:05:45,820 which is the server that hosts the databases and which needs 113 00:05:45,820 --> 00:05:48,880 to be up and running for us to interact with them and with 114 00:05:48,880 --> 00:05:50,720 the data in them. 115 00:05:50,720 --> 00:05:54,680 And the Mongo executable actually will be a shell, 116 00:05:54,680 --> 00:05:57,930 which we can use to talk to that server. 117 00:05:57,930 --> 00:06:01,340 So that will be the tool we use for running queries against 118 00:06:01,340 --> 00:06:03,170 the database server. 119 00:06:03,170 --> 00:06:04,420 Now, as I mentioned before, 120 00:06:04,420 --> 00:06:07,070 there's also a graphical user interface. 121 00:06:07,070 --> 00:06:10,490 You could use MongoDB Compass, but actually 122 00:06:10,490 --> 00:06:11,500 for this course, 123 00:06:11,500 --> 00:06:14,500 we're going to stay in the shell because it is about 124 00:06:14,500 --> 00:06:17,240 learning these commands and query commands 125 00:06:17,240 --> 00:06:20,210 and while executing them through the shell is the most 126 00:06:20,210 --> 00:06:22,730 straightforward way of doing so. 127 00:06:22,730 --> 00:06:26,120 A graphical user interface can be a nice tool to help, 128 00:06:26,120 --> 00:06:28,318 but it will not be our main way of interacting 129 00:06:28,318 --> 00:06:29,840 with MongoDB. 130 00:06:31,560 --> 00:06:34,980 Now, of course, with MySQL, we did actually use the, 131 00:06:34,980 --> 00:06:37,010 MySQL workbench a lot, 132 00:06:37,010 --> 00:06:40,421 but there keep in mind that we had to do things like 133 00:06:40,421 --> 00:06:44,920 configuring our database and the table structures in there 134 00:06:44,920 --> 00:06:48,350 with MongoDB and no SQL databases in general 135 00:06:48,350 --> 00:06:52,350 that's not a main task we have to do because there is no 136 00:06:52,350 --> 00:06:55,080 database or a table structure. 137 00:06:55,080 --> 00:06:57,970 Instead, it's only about running these commands 138 00:06:57,970 --> 00:07:00,900 and if you recall the MySQL section there, 139 00:07:00,900 --> 00:07:02,830 we also ran commands, 140 00:07:02,830 --> 00:07:06,190 sequel statements with help of MySQL workbench 141 00:07:06,190 --> 00:07:08,410 But in the end we just executed commands there 142 00:07:08,410 --> 00:07:10,723 we type commands and executed them. 143 00:07:11,690 --> 00:07:13,760 And we're going to do the same thing here 144 00:07:13,760 --> 00:07:15,570 with this Mongo shell, 145 00:07:15,570 --> 00:07:19,140 just without the overhead of this graphical user interface, 146 00:07:19,140 --> 00:07:22,330 which has a lot of options, which we don't need. 147 00:07:22,330 --> 00:07:23,163 So that's why, 148 00:07:23,163 --> 00:07:25,290 these will be the two important things for us 149 00:07:25,290 --> 00:07:26,790 in this course section here 150 00:07:27,830 --> 00:07:30,453 but how do we now execute these files? 151 00:07:31,410 --> 00:07:32,840 You could double click on them, 152 00:07:32,840 --> 00:07:35,150 but that's not really how we want to do that 153 00:07:35,150 --> 00:07:37,060 instead, we want to invoke them 154 00:07:37,060 --> 00:07:39,200 through the terminal here on macOS 155 00:07:40,560 --> 00:07:42,500 and to do this efficiently 156 00:07:42,500 --> 00:07:46,890 we want to make them available as global commands on our 157 00:07:46,890 --> 00:07:47,723 system. 158 00:07:49,030 --> 00:07:52,630 And the official documentation tells us how we can do that 159 00:07:52,630 --> 00:07:55,940 effectively, we got these two approaches here, 160 00:07:55,940 --> 00:07:56,800 which we can use. 161 00:07:56,800 --> 00:08:01,800 We can copy the files into this user local bin folder here, 162 00:08:02,040 --> 00:08:05,750 or we create so-called symbolic links. 163 00:08:05,750 --> 00:08:08,730 Now this might sound a bit more advanced than these commands 164 00:08:08,730 --> 00:08:11,100 might look a bit more advanced, but in the end, 165 00:08:11,100 --> 00:08:14,880 what we're doing with that is we're turning these executable 166 00:08:14,880 --> 00:08:16,750 files into commands. 167 00:08:16,750 --> 00:08:20,453 We can run from inside the terminal on our system, 168 00:08:21,570 --> 00:08:24,990 just as we could run the node command from inside the 169 00:08:24,990 --> 00:08:26,873 terminal on our system. 170 00:08:29,880 --> 00:08:33,250 Now to make that all work on macOS, it's easiest 171 00:08:33,250 --> 00:08:35,780 if you right click onto the bin folder 172 00:08:36,669 --> 00:08:38,278 and you then open a new terminal 173 00:08:38,278 --> 00:08:40,273 at that folder, 174 00:08:42,110 --> 00:08:42,943 alternatively, 175 00:08:42,943 --> 00:08:45,580 you open your terminal just like that. 176 00:08:45,580 --> 00:08:50,580 And you then #cd you navigate into that path where these 177 00:08:50,587 --> 00:08:54,620 files are located. So into the bin folder here, ultimately, 178 00:08:54,620 --> 00:08:55,453 but it's, 179 00:08:55,453 --> 00:08:58,290 if you just do right click here and opened a terminal 180 00:08:58,290 --> 00:09:01,550 already navigated into the path by clicking this option 181 00:09:02,920 --> 00:09:05,010 And then what you want to do is 182 00:09:05,010 --> 00:09:07,470 you want to run this command here 183 00:09:07,470 --> 00:09:09,030 from the official docs 184 00:09:10,690 --> 00:09:13,420 So copy that command, paste it in there, 185 00:09:13,420 --> 00:09:15,870 but don't execute it yet. 186 00:09:15,870 --> 00:09:19,020 Instead, since we're already in that bin folder, 187 00:09:19,020 --> 00:09:23,270 we want to shrink this first part here to just copy 188 00:09:24,988 --> 00:09:26,700 . / * 189 00:09:26,700 --> 00:09:30,300 which copies the content of the current folder into this 190 00:09:30,300 --> 00:09:31,850 folder, which you want to keep, 191 00:09:32,920 --> 00:09:34,070 then hit enter, 192 00:09:34,070 --> 00:09:37,280 and you might be prompted for your password here. 193 00:09:37,280 --> 00:09:39,710 And once you entered your password correctly, 194 00:09:39,710 --> 00:09:42,530 which I didn't manage to do on the first two tries, 195 00:09:42,530 --> 00:09:43,550 as you can see, 196 00:09:43,550 --> 00:09:44,540 this should be done 197 00:09:46,020 --> 00:09:48,700 now to verify that this not all worked 198 00:09:48,700 --> 00:09:52,370 simply type Mongo into your terminal, 199 00:09:52,370 --> 00:09:55,470 and this might give you a warning like this, 200 00:09:55,470 --> 00:09:58,173 so that it's not allowed to start. 201 00:09:59,050 --> 00:10:00,440 If that happens, 202 00:10:00,440 --> 00:10:03,840 go to your system preferences and there to security and 203 00:10:03,840 --> 00:10:05,920 privacy, and then there, 204 00:10:05,920 --> 00:10:07,470 and click on allow any way 205 00:10:08,800 --> 00:10:12,280 due to same for all the other MongoDB commands 206 00:10:12,280 --> 00:10:14,420 you might execute throughout this course 207 00:10:14,420 --> 00:10:16,873 Whenever you get this warning you just saw. 208 00:10:18,320 --> 00:10:20,870 once you did that, if you try running Mongo again, 209 00:10:20,870 --> 00:10:22,500 this time to get a different warning, 210 00:10:22,500 --> 00:10:24,340 we can click open there, 211 00:10:24,340 --> 00:10:29,020 and now it executes it still crashes because actually it 212 00:10:29,020 --> 00:10:31,840 fails to connect to a MongoDB server, 213 00:10:31,840 --> 00:10:35,290 but it at least did recognize this command now. 214 00:10:35,290 --> 00:10:37,233 And that's the important thing here. 215 00:10:39,480 --> 00:10:41,540 Now what's missing at this point though, 216 00:10:41,540 --> 00:10:43,710 is the database server itself. 217 00:10:43,710 --> 00:10:47,340 We need to start that before we can actually successfully 218 00:10:47,340 --> 00:10:49,380 run Mongo, the Mongo shell, 219 00:10:49,380 --> 00:10:51,563 and connect to it and work with it. 220 00:10:52,720 --> 00:10:55,934 Now in a database server would be started by running the 221 00:10:55,934 --> 00:10:58,050 Mongo D command, 222 00:10:58,050 --> 00:11:00,160 But before we run this, 223 00:11:00,160 --> 00:11:03,910 we have to prepare our system a little bit, to be precise 224 00:11:03,910 --> 00:11:08,560 we have to prepare POV folders on our system 225 00:11:08,560 --> 00:11:11,540 where MongoDB will be able to store 226 00:11:11,540 --> 00:11:16,403 the actual database data and some log files, 227 00:11:17,800 --> 00:11:20,830 because when working with a database like MongoDB, 228 00:11:20,830 --> 00:11:23,880 but the same is true for all databases. Of course, 229 00:11:23,880 --> 00:11:27,330 eventually the data will be written to your hard drive and 230 00:11:27,330 --> 00:11:31,243 you need to tell MongoDB where data should be written to. 231 00:11:32,280 --> 00:11:36,820 Therefore what you want to do is you want to create some POV 232 00:11:36,820 --> 00:11:40,083 on your system where that data should be stored. 233 00:11:41,420 --> 00:11:44,020 And for this here, I got a development folder, 234 00:11:44,020 --> 00:11:46,490 which is directly in my user folder, 235 00:11:46,490 --> 00:11:49,570 where I will create a MongoDB folder. 236 00:11:49,570 --> 00:11:52,090 And in there I'll add a data folder 237 00:11:52,090 --> 00:11:54,573 and I'll add a logs folder. 238 00:11:55,660 --> 00:11:58,920 Now you can add such a structure anywhere on your system. 239 00:11:58,920 --> 00:12:02,340 Just make sure that it's somewhere in your user folder in 240 00:12:02,340 --> 00:12:06,840 the end, so that you have full read and right access to it. 241 00:12:06,840 --> 00:12:10,790 So don't create it in some reserved system path or anything 242 00:12:10,790 --> 00:12:11,623 like that. 243 00:12:13,570 --> 00:12:16,640 Instead, your user folder is a good starting point 244 00:12:16,640 --> 00:12:19,480 And then some sub folder there is a good starting point 245 00:12:19,480 --> 00:12:20,313 In my case, 246 00:12:20,313 --> 00:12:23,680 it does development folder where I have the MongoDB folder 247 00:12:23,680 --> 00:12:26,940 where I have these folders I just created. 248 00:12:26,940 --> 00:12:29,810 So usually create a structure that looks something like this 249 00:12:29,810 --> 00:12:30,963 folder wise. 250 00:12:32,540 --> 00:12:35,700 Now, once you have these empty data and logs folders, 251 00:12:35,700 --> 00:12:38,653 you can actually now start Mongo D. 252 00:12:39,860 --> 00:12:42,810 Now, first of all, we can run Mongo D just like this, 253 00:12:42,810 --> 00:12:44,410 because it will fail anyways, 254 00:12:44,410 --> 00:12:46,223 because MacOS will block it. 255 00:12:47,330 --> 00:12:48,630 So to work around that, again, 256 00:12:48,630 --> 00:12:52,320 we go to the system preferences and allowed us anyways, 257 00:12:52,320 --> 00:12:54,520 and now we could run it successfully. 258 00:12:54,520 --> 00:12:56,360 But before we now run it again, 259 00:12:56,360 --> 00:12:59,060 we want to configure it a little bit. 260 00:12:59,060 --> 00:13:01,807 So we'll type Mongo D and then a blank. 261 00:13:01,807 --> 00:13:04,650 And now we want to make MongoDB 262 00:13:04,650 --> 00:13:09,650 aware of the data and logs POV we just created 263 00:13:10,610 --> 00:13:12,847 And for this, you add a so-called flag, 264 00:13:12,847 --> 00:13:16,228 a so-called option to this command to configure this 265 00:13:16,228 --> 00:13:17,061 command. 266 00:13:17,940 --> 00:13:22,940 You do this by typing dash dash and then DB path is the 267 00:13:23,521 --> 00:13:25,280 option name we want to add here. 268 00:13:25,280 --> 00:13:27,440 And with that, we can tell MongoDB 269 00:13:27,440 --> 00:13:29,220 where the data should be stored 270 00:13:29,220 --> 00:13:31,420 So that's a special option MongoDB 271 00:13:31,420 --> 00:13:33,040 would be watching for 272 00:13:34,120 --> 00:13:36,880 then you add a blank and then the path where the data should 273 00:13:36,880 --> 00:13:39,800 be stored, and to get that path, 274 00:13:39,800 --> 00:13:42,710 you can go to that data path, you created 275 00:13:42,710 --> 00:13:45,100 and right click on it and choose 276 00:13:45,100 --> 00:13:47,000 get info here on macOS 277 00:13:48,110 --> 00:13:51,390 and then you can copy this path here 278 00:13:51,390 --> 00:13:55,433 in the where part and paste it in here, 279 00:13:56,650 --> 00:14:00,990 and now just make sure that it ends with slash data or 280 00:14:00,990 --> 00:14:03,763 whichever name you chose for your data folder. 281 00:14:04,770 --> 00:14:06,337 So that is the first important part 282 00:14:06,337 --> 00:14:08,370 with that will tell MongoDB 283 00:14:08,370 --> 00:14:09,680 where to store the data 284 00:14:09,680 --> 00:14:12,940 And you want to add this option whenever you restart your 285 00:14:12,940 --> 00:14:14,860 Mongo DB server. 286 00:14:14,860 --> 00:14:15,693 For example, 287 00:14:15,693 --> 00:14:18,750 if you was shuts down your operating system and you 288 00:14:18,750 --> 00:14:19,820 restarted it, 289 00:14:19,820 --> 00:14:23,130 and you now want to restart your Mongo DB server to work 290 00:14:23,130 --> 00:14:26,123 with it again, you have to restart it like this again, 291 00:14:27,130 --> 00:14:30,450 but we're still not done. Add another blank. 292 00:14:30,450 --> 00:14:31,330 And here for me, 293 00:14:31,330 --> 00:14:34,540 it's doing it in a new line because I ran out of space here, 294 00:14:34,540 --> 00:14:37,480 but it's technically still the same command in the same 295 00:14:37,480 --> 00:14:38,313 line. 296 00:14:38,313 --> 00:14:41,463 It just added this line break for readability reasons don't 297 00:14:41,463 --> 00:14:44,510 hit enter, because that would confirm to command 298 00:14:44,510 --> 00:14:47,350 And you don't want to do that yet instead, 299 00:14:47,350 --> 00:14:50,660 just add a blank and then also add another option 300 00:14:50,660 --> 00:14:53,943 with dash dash and that's the Logpath option. 301 00:14:54,940 --> 00:14:58,300 And here, we now want to get the path to our logs folder, 302 00:14:58,300 --> 00:15:01,100 which of course is the same path just ending with slash 303 00:15:01,100 --> 00:15:02,430 logs in my case 304 00:15:03,350 --> 00:15:05,710 to point at this logs folder 305 00:15:07,170 --> 00:15:08,040 Now, for the logs, 306 00:15:08,040 --> 00:15:11,330 you then also actually have to point at a concrete file that 307 00:15:11,330 --> 00:15:12,500 should be created. 308 00:15:12,500 --> 00:15:16,640 So add another slash and then Mongo.log 309 00:15:16,640 --> 00:15:18,643 like that The name is up to you, 310 00:15:18,643 --> 00:15:21,890 but Mongo.log is a common name for that log file 311 00:15:22,730 --> 00:15:26,260 for the data path you did not specify such a file 312 00:15:27,880 --> 00:15:29,050 Now you can hit enter, 313 00:15:29,050 --> 00:15:32,330 and you might see another warning where you have to 314 00:15:32,330 --> 00:15:35,270 confirm that you want to open this command, this tool, 315 00:15:35,270 --> 00:15:36,180 but with that, 316 00:15:36,180 --> 00:15:40,110 eventually it should now start this Mongo DB server 317 00:15:40,110 --> 00:15:41,930 successfully. 318 00:15:41,930 --> 00:15:44,750 And you can tell that it's successful by the fact that it 319 00:15:44,750 --> 00:15:46,250 does not crash. 320 00:15:46,250 --> 00:15:50,610 And that you now start at such an ongoing process. 321 00:15:50,610 --> 00:15:53,970 You're not back to the regular input mode anymore. Instead, 322 00:15:53,970 --> 00:15:55,486 this is a running process, 323 00:15:55,486 --> 00:15:58,770 which you can always quit with Control + C 324 00:16:00,020 --> 00:16:01,000 so by pressing 325 00:16:01,000 --> 00:16:02,660 control + C 326 00:16:02,660 --> 00:16:03,690 But if you do quit, 327 00:16:03,690 --> 00:16:06,610 you won't be able to interact with the database anymore. 328 00:16:06,610 --> 00:16:09,990 You have to restart it then to do that again. 329 00:16:09,990 --> 00:16:13,400 So as long as you are working with dad, Mongo DB database, 330 00:16:13,400 --> 00:16:16,040 you want to keep that process up and running. 331 00:16:16,040 --> 00:16:19,170 So you don't want to close that terminal window and you 332 00:16:19,170 --> 00:16:22,430 don't want to hit control + C here instead 333 00:16:22,430 --> 00:16:25,553 Now we can open a new terminal window, for example, 334 00:16:25,553 --> 00:16:29,510 by pressing command + N here on macOS 335 00:16:29,510 --> 00:16:31,790 So I still have the other process running here, 336 00:16:31,790 --> 00:16:34,450 and now I have my new window here, 337 00:16:34,450 --> 00:16:35,340 And in here, 338 00:16:35,340 --> 00:16:38,193 we can now try to connect to this running server. 339 00:16:39,080 --> 00:16:41,410 And we do this by running this Mongo command, 340 00:16:41,410 --> 00:16:42,730 which I showed you before, 341 00:16:42,730 --> 00:16:45,283 which under the hood uses this Mongo shell. 342 00:16:46,380 --> 00:16:47,730 If you hit enter like this, 343 00:16:47,730 --> 00:16:50,379 it should automatically connect to your server. 344 00:16:50,379 --> 00:16:54,120 It gives a bunch of log information output here, 345 00:16:54,120 --> 00:16:56,890 but eventually it will connect. 346 00:16:56,890 --> 00:16:58,760 And now that you are connected, 347 00:16:58,760 --> 00:17:01,093 you can interact with that server. 348 00:17:02,070 --> 00:17:03,810 For example, in here, 349 00:17:03,810 --> 00:17:07,559 you can run show DBS to see all the databases that are 350 00:17:07,559 --> 00:17:10,560 running on your database server, 351 00:17:10,560 --> 00:17:14,119 and you'll have some default databases out of the box here. 352 00:17:14,119 --> 00:17:17,590 Now that's the point where we'll stop here. 353 00:17:17,590 --> 00:17:19,930 We'll pick up on this in the next lectures again, 354 00:17:19,930 --> 00:17:22,069 if you're facing any problems here, 355 00:17:22,069 --> 00:17:25,000 definitely have a look at these official docs for MacOS 356 00:17:26,000 --> 00:17:28,010 to go through the installation 357 00:17:28,010 --> 00:17:29,210 Step-by-step again, 358 00:17:29,210 --> 00:17:32,830 with help of that written guide and eventually have that 359 00:17:32,830 --> 00:17:37,380 running server and connected shell on your system as well. 360 00:17:37,380 --> 00:17:39,233 Now let's continue with windows.