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1. Write SELECT INTO statements to create two test tables named VendorCopy and Invoice Copy that are complete copies of the Vendors and Invoices tables. If VendorCopy and InvoiceCopy already exist, first code two DROP TABLE statements to delete them. 2. Write an INSERT statement that adds a row to the InvoiceCopy table with the following values: VendorID: 32 Invoice Total: $434.58 TermsID: 2 InvoiceNumber: AX-014-027 Payment Total: $0.00 InvoiceDueDate: 05/8/2020 InvoiceDate: 4/21/2020 Credit Total: $0.00 PaymentDate: null 3. Write an INSERT statement that adds a row to the VendorCopy table for each non-California vendor in the Vendors table. (This will result in duplicate vendors in the VendorCopy table.)

1. Write SELECT INTO statements to create two test tables named VendorCopy and Invoice Copy that are complete copies of the Vendors and Invoices tables. If VendorCopy and InvoiceCopy already exist, first code two DROP TABLE statements to delete them. 2. Write an INSERT statement that adds a row to the InvoiceCopy table with the following values: VendorID: 32 Invoice Total: $434.58 TermsID: 2 InvoiceNumber: AX-014-027 Payment Total: $0.00 InvoiceDueDate: 05/8/2020 InvoiceDate: 4/21/2020 Credit Total: $0.00 PaymentDate: null 3. Write an INSERT statement that adds a row to the VendorCopy table for each non-California vendor in the Vendors table. (This will result in duplicate vendors in the VendorCopy table.)

Database System Concepts
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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1. **Create Test Tables** - Write `SELECT INTO` statements to create two test tables named `VendorCopy` and `InvoiceCopy`. These should be complete copies of the `Vendors` and `Invoices` tables. - If `VendorCopy` and `InvoiceCopy` already exist, first use two `DROP TABLE` statements to delete them. 2. **Add Row to InvoiceCopy Table** - Write an `INSERT` statement to add a row to the `InvoiceCopy` table with the following values: - `VendorID`: 32 - `InvoiceTotal`: $434.58 - `TermsID`: 2 - `InvoiceNumber`: AX-014-027 - `PaymentTotal`: $0.00 - `InvoiceDueDate`: 05/8/2020 - `InvoiceDate`: 4/21/2020 - `CreditTotal`: $0.00 - `PaymentDate`: null 3. **Add Row to VendorCopy Table** - Write an `INSERT` statement to add a row to the `VendorCopy` table for each non-California vendor in the `Vendors` table. (This will result in duplicate vendors in the `VendorCopy` table.) 4. **Modify VendorCopy Table** - Write an `UPDATE` statement to modify the `VendorCopy` table. Change the default account number to 403 for each vendor that has a default account number of 400.
Transcribed Image Text:1. **Create Test Tables** - Write `SELECT INTO` statements to create two test tables named `VendorCopy` and `InvoiceCopy`. These should be complete copies of the `Vendors` and `Invoices` tables. - If `VendorCopy` and `InvoiceCopy` already exist, first use two `DROP TABLE` statements to delete them. 2. **Add Row to InvoiceCopy Table** - Write an `INSERT` statement to add a row to the `InvoiceCopy` table with the following values: - `VendorID`: 32 - `InvoiceTotal`: $434.58 - `TermsID`: 2 - `InvoiceNumber`: AX-014-027 - `PaymentTotal`: $0.00 - `InvoiceDueDate`: 05/8/2020 - `InvoiceDate`: 4/21/2020 - `CreditTotal`: $0.00 - `PaymentDate`: null 3. **Add Row to VendorCopy Table** - Write an `INSERT` statement to add a row to the `VendorCopy` table for each non-California vendor in the `Vendors` table. (This will result in duplicate vendors in the `VendorCopy` table.) 4. **Modify VendorCopy Table** - Write an `UPDATE` statement to modify the `VendorCopy` table. Change the default account number to 403 for each vendor that has a default account number of 400.
5. Write an UPDATE statement that modifies the InvoiceCopy table. Change the PaymentDate to today’s date and the PaymentTotal to the balance due for each invoice with a balance due. Set today’s date with a literal date string, or use the GETDATE() function. 6. Write an UPDATE statement that modifies the InvoiceCopy table. Change TermsID to 2 for each invoice that’s from a vendor with a DefaultTermsID of 2. Use a subquery. 7. Solve exercise 6 using a join rather than a subquery. 8. Write a DELETE statement that deletes all vendors in the state of Minnesota from the VendorCopy table. 9. Write a DELETE statement for the VendorCopy table. Delete the vendors that are located in states from which no vendor has ever sent an invoice. Hint: Use a subquery coded with “SELECT DISTINCT VendorState” introduced with the NOT IN operator.
Transcribed Image Text:5. Write an UPDATE statement that modifies the InvoiceCopy table. Change the PaymentDate to today’s date and the PaymentTotal to the balance due for each invoice with a balance due. Set today’s date with a literal date string, or use the GETDATE() function. 6. Write an UPDATE statement that modifies the InvoiceCopy table. Change TermsID to 2 for each invoice that’s from a vendor with a DefaultTermsID of 2. Use a subquery. 7. Solve exercise 6 using a join rather than a subquery. 8. Write a DELETE statement that deletes all vendors in the state of Minnesota from the VendorCopy table. 9. Write a DELETE statement for the VendorCopy table. Delete the vendors that are located in states from which no vendor has ever sent an invoice. Hint: Use a subquery coded with “SELECT DISTINCT VendorState” introduced with the NOT IN operator.
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