Please answer the following questions based on the given data model: Customer Customer_stock stock tckn: varchar(11) fname: varchar(50) Iname: varchar(50) code: varchar(8) name varchar(100) id: int customer_tckn: varchar(11) stock_code: varchar(8) quantity: int active_buy_price: float activo_coll_price: float birth_date: date average_cost float Index_stock Index code: varchar(8) name. varchar(20) id: int index_code: varchar(8) stock_code: varcher(8) A customer whose TCKN is 12345678901 bought 50000 stocks of PGSUS (stock code) with the active sell price. Considering this customer holds previoulsy bought PGSUS stocks, please write the appropriate update statement (for quantity and average cost) for this purchase.

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
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Hello, I have a question for about Database Management Systems. It asks me write some SQL commands to achieve the corresponding results. Thanks.

Please answer the following questions based on the given data model:
Customer
Customer_stock
stock
tckn: varchar(11)
fname: varchar(50)
Iname: varchar(50)
code: varchar(8)
name varchar(100)
id: int
customer_tckn: varchar(11)
stock_code: varchar(8)
quantity: int
active_buy_price: float
activo_coll_price: float
birth_date: date
average_cost float
Index_stock
Index
code: varchar(8)
name. varchar(20)
id: int
index_code: varchar(8)
stock_code: varcher(8)
A customer whose TCKN is 12345678901 bought 50000 stocks of PGSUS (stock code)
with the active sell price. Considering this customer holds previoulsy bought PGSUS stocks, please
write the appropriate update statement (for quantity and average cost) for this purchase.
Transcribed Image Text:Please answer the following questions based on the given data model: Customer Customer_stock stock tckn: varchar(11) fname: varchar(50) Iname: varchar(50) code: varchar(8) name varchar(100) id: int customer_tckn: varchar(11) stock_code: varchar(8) quantity: int active_buy_price: float activo_coll_price: float birth_date: date average_cost float Index_stock Index code: varchar(8) name. varchar(20) id: int index_code: varchar(8) stock_code: varcher(8) A customer whose TCKN is 12345678901 bought 50000 stocks of PGSUS (stock code) with the active sell price. Considering this customer holds previoulsy bought PGSUS stocks, please write the appropriate update statement (for quantity and average cost) for this purchase.
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