8002 1002 30/3/2020 528.10 8003 1003 12/4/2020 194.78 8004 1004 23/4/2020 619.44 1. Create both the CUSTOMER and INVOICE tables structure above. Details of both tables are: a) The customer number should store integer values. The name attributes should support variable length character data up to 30 characters each. The customer balance should support up to six digits on the left of the decimal place and two digits to the right of the decimal place. b) The invoice number should store integer values. The invoice date should store date values. The invoice amount should support up to 8 digits to the left of the decimal place and two digits to the right of the decimal place. 2. Write the SQL commands necessary to insert the data into the CUSTOMER table and the INVOICE table created in (1).

8002 1002 30/3/2020 528.10 8003 1003 12/4/2020 194.78 8004 1004 23/4/2020 619.44 1. Create both the CUSTOMER and INVOICE tables structure above. Details of both tables are: a) The customer number should store integer values. The name attributes should support variable length character data up to 30 characters each. The customer balance should support up to six digits on the left of the decimal place and two digits to the right of the decimal place. b) The invoice number should store integer values. The invoice date should store date values. The invoice amount should support up to 8 digits to the left of the decimal place and two digits to the right of the decimal place. 2. Write the SQL commands necessary to insert the data into the CUSTOMER table and the INVOICE table created in (1).

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.

Question

Part 1:
CUSTOMER
CUST_NUM
CUST_LNAME
CUST_FNAME
CUST_BALANCE
1000
Billy
Jean
1050.11
1001
Amanda
John
840.92
INVOICE
INV DATE
23/3/2020
INV_NUM
CUST_NUM
INV_AMOUNT
8000
1000
235.89
8001
1001
23/3/2020
312.82
8002
1002
30/3/2020
528.10
8003
1003
12/4/2020
194.78
8004
1004
23/4/2020
619.44
1. Create both the CUSTOMER and INVOICE tables structure above. Details of both tables are:
a) The customer number should store integer values. The name attributes should support variable
length character data up to 30 characters each. The customer balance should support up to six digits on
the left of the decimal place and two digits to the right of the decimal place.
b) The invoice number should store integer values. The invoice date should store date values. The
invoice amount should support up to 8 digits to the left of the decimal place and two digits to the right
of the decimal place.
2. Write the SQL commands necessary to insert the data into the CUSTOMER table and the INVOICE
table created in (1).

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