The National Bank of Erehwon handles money and maintains bank accounts on behalf of clients. A client is a person who does business with the bank. A client may have any number of accounts, and an account may belong to multiple clients (e.g., spouses, business partners). The client record is used for identification and contact data. For each account, the bank maintains the current balance on hand. Clients are identified by a five digit number starting with 10001. Accounts are identified by a seven digit number starting with 1000001. When an account is first opened, its balance is set to zero. During the course of day-to-day business, Erehwon Bank applies transactions to accounts, including deposits, withdrawals, bill payments, and debit purchases or returns. For each transaction, the date and time, amount, and account are recorded, along with reference data applicable to that type of transaction: Deposits and withdrawals require the branch number to be recorded. Bill payments, and debit purchases or returns require the merchant number. Building and Populating the Schema Develop a database in Oracle to implement the Erehwon Bank scenario. Provide a count and total amount of Transactions for each Type description List of each Account showing the first Transaction date, type, and amount. (Hint: This is a correlated sub-query.) Count and Total Amount for each Transaction Type within each Account (Hint: This is an extended GROUP BY.)
The National Bank of Erehwon handles money and maintains bank accounts on behalf of clients.
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A client is a person who does business with the bank.
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A client may have any number of accounts, and an account may belong to multiple clients (e.g., spouses, business partners).
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The client record is used for identification and contact data.
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For each account, the bank maintains the current balance on hand.
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Clients are identified by a five digit number starting with 10001.
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Accounts are identified by a seven digit number starting with 1000001.
When an account is first opened, its balance is set to zero. During the course of day-to-day business, Erehwon Bank applies transactions to accounts, including deposits, withdrawals, bill payments, and debit purchases or returns. For each transaction, the date and time, amount, and account are recorded, along with reference data applicable to that type of transaction:
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Deposits and withdrawals require the branch number to be recorded.
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Bill payments, and debit purchases or returns require the merchant number.
Building and Populating the Schema
Develop a
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Provide a count and total amount of Transactions for each Type description
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List of each Account showing the first Transaction date, type, and amount. (Hint: This is a correlated sub-query.)
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Count and Total Amount for each Transaction Type within each Account (Hint: This is an extended GROUP BY.)
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Step by step
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