1 00:00:00,390 --> 00:00:00,960 Hello there. 2 00:00:00,960 --> 00:00:03,080 Welcome to this video. 3 00:00:03,390 --> 00:00:14,540 Describe describe is askew our command used to provide a description for a database table of view. 4 00:00:14,730 --> 00:00:18,060 So if you are not sure what this truck. 5 00:00:18,060 --> 00:00:18,430 Sure. 6 00:00:18,430 --> 00:00:20,390 Off a table looks like a. 7 00:00:20,400 --> 00:00:24,720 Command you we use to find that out will be the described command. 8 00:00:24,720 --> 00:00:27,560 So let's show you a quick example how that's done. 9 00:00:28,140 --> 00:00:28,540 All right. 10 00:00:28,560 --> 00:00:32,380 I've got term taught for a call Ed open. 11 00:00:32,400 --> 00:00:37,560 I'm just going to show an example of how you use the Describe command. 12 00:00:37,650 --> 00:00:45,300 So you begin by type in the word describe followed by the name of the table you're trying to get the 13 00:00:45,300 --> 00:00:48,370 information from. 14 00:00:55,630 --> 00:00:59,380 So always put a semicolon at the end of your statement. 15 00:00:59,530 --> 00:01:04,640 So a routine the key word describe employees is the name on the table. 16 00:01:04,660 --> 00:01:10,990 So if I execute this it should provide new information about the table 17 00:01:13,440 --> 00:01:15,060 thinking about it. 18 00:01:17,050 --> 00:01:17,520 All right. 19 00:01:17,520 --> 00:01:18,060 They will go. 20 00:01:18,060 --> 00:01:25,620 So these is the structure of the table tells me the column leaves in the column names for the table 21 00:01:26,700 --> 00:01:33,880 the primary keys and other information relevant to their table. 22 00:01:33,900 --> 00:01:38,060 So this is where you find any information relating to the table. 23 00:01:38,580 --> 00:01:41,680 Okay so that's how you would use to describe. 24 00:01:41,790 --> 00:01:44,310 There is also a short form of this. 25 00:01:44,310 --> 00:01:46,530 You can also use the word 26 00:01:49,660 --> 00:01:54,560 D C followed by the name on the table. 27 00:01:57,060 --> 00:02:01,220 Let's use a different table this time. 28 00:02:01,680 --> 00:02:03,530 The Countries table. 29 00:02:03,830 --> 00:02:06,190 So execute that. 30 00:02:11,590 --> 00:02:12,440 Thinking. 31 00:02:12,740 --> 00:02:13,390 A big answer. 32 00:02:13,400 --> 00:02:21,980 Provide me provide information about their countries table told me he's got these other columns country 33 00:02:22,190 --> 00:02:26,860 the country name region primary key country. 34 00:02:27,110 --> 00:02:34,290 The primary key so gives me various informations about it if need to check if the tables constraint 35 00:02:34,720 --> 00:02:36,170 I can click on to constraints. 36 00:02:36,170 --> 00:02:41,170 Part of it tells me there is a constraint in position 1. 37 00:02:41,670 --> 00:02:43,730 Okay which is in the column. 38 00:02:44,050 --> 00:02:53,550 All right so that's how you would use describe command to get information relating to the table structure. 39 00:02:54,960 --> 00:03:04,580 Okay this was a nice quick brief video on describe in this video I give an explanation of how to use 40 00:03:04,580 --> 00:03:10,190 to describe equipment and also should an example use in a couple of tables. 41 00:03:10,190 --> 00:03:12,120 I hope this information has been useful. 42 00:03:12,140 --> 00:03:16,520 Thank you so much as always for watching this video and hope to see you soon. 43 00:03:16,520 --> 00:03:17,970 Bye for now.