1. You are late, aren't you? The garden was quite good, wasn't it?
Download 8.78 Kb. Pdf ko'rish
|
nazorat2ingliztilo
1) 1. You are late, aren't you? 2. The garden was quite good, wasn't it? 3. She never cooks, does she? 4. Tell the truth, will you? 5. Let's go out tonight, shall we? 6. Someone was coming with us, weren't they? 7. Mary plays the piano, doesn't she? 8. You didn't have anything to do this week, did you? 9. I'm so busy this Monday, aren't I? 10. Something fell down here yesterday, didn't it? 2) A database has several parts. These are called (1)fields. The simplest of these is a table; most databases have at least two. Tables look like a spreadsheet. Each row in the table is a (n) (2) record, containing information about one item such as a person or something that the company sells. Each of these contains several (3) objects with information about the item. For example, in a company's employee database, these might be family name, given name, phone number, and so on. One important point is that one field in each record must be (4) unique - the same data must not be in any other record. We call this field the (5) primary key. It can be a staff ID number, for example, but it can't be a given name because many people have the same given name. Another type of object is a(n) (6) form; this object type is a(n) (7) report, which is used for entering data into tables. A third form, which can show data from more than one table at the same time, looks good and is suitable for printing. There are several ways to get data out of a database. One is simply to (8) retrieve a record- for example, if we want to check the data in a single record, such as an employee's phone number. If we want to combine information from several tables or do something with the data, such as add up financial information from several records, we can (9) query the database. 3) 1. Where do you live? 2. Who's that girl? 3. How do you go to school? 4. When do banks open? 5. Why are you wearing that coat? 6. Who is your math teacher? 7. Which one is his cat? 8. Where is my backpack? 9. What is Hannah doing? 10. Who is an engineer? Download 8.78 Kb. Do'stlaringiz bilan baham: |
Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2024
ma'muriyatiga murojaat qiling
ma'muriyatiga murojaat qiling