barcode generator in vb.net code project Now you ll add a HAVING clause to the SELECT statement you just executed. Enter and in Software

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8. Now you ll add a HAVING clause to the SELECT statement you just executed. Enter and
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execute the following SQL statement:
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SELECT FROM GROUP HAVING LABEL_ID, SUM(IN_STOCK) AS TOTAL_IN_STOCK COMPACT_DISCS BY LABEL_ID SUM(IN_STOCK) > 10;
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SQL: A Beginner s Guide
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The HAVING clause limits the rows that are returned to those whose TOTAL_IN_STOCK values are greater than 10. Now only eight rows are returned.
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9. You can also execute a SELECT statement that orders the data returned by your query.
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Enter and execute the following SQL statement:
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SELECT FROM WHERE ORDER * COMPACT_DISCS IN_STOCK > 10 BY CD_TITLE DESC;
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Your query results should be organized according to the CD_TITLE column, with the columns listed in descending order. Because the WHERE clause is used, only 12 rows should have been returned.
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10. Close the client application.
Try This Summary
In this Try This exercise, you inserted data into the tables of the INVENTORY database. You then created SELECT statements that allowed you to query data in those tables. You should feel free to experiment with SELECT statements and try different types of queries. As you become more comfortable with using the SELECT statement and learn more advanced techniques for querying data, you ll be able to write SELECT statements that access multiple tables, calculate data, and summarize information. However, even the more advanced techniques rely on the basic foundation that you have demonstrated in this exercise. Everything else builds on this.
7 Self Test
1. Which clauses in a SELECT statement are part of the table expression A SELECT B FROM C WHERE D ORDER BY 2. In what order are the clauses of a SELECT statement applied 3. You are writing a SELECT statement that retrieves the CD_TITLE column and all rows
from the INVENTORY table. Which SELECT statement should you use
7:
Querying SQL Data
4. You are writing a SELECT statement that retrieves the CD_TITLE column and all rows
from the INVENTORY table. You want the column in the query results to be named COMPACT_DISC. Which SELECT statement should you use
5. Which clauses in a SELECT statement are required A SELECT B FROM C WHERE D GROUP BY 6. Which keyword should you add to the SELECT clause to ensure that each row of the query
result is unique
A ALL B ROLLUP C DISTINCT D CUBE 7. You re creating a SELECT statement for the INVENTORY table and you want to ensure
that only rows with a RETAIL_PRICE value of less than $16.00 are included in the query results. What WHERE clause should you use
8. You re creating a SELECT statement that includes a WHERE clause. The WHERE clause
contains two predicates. You want the condition of either one of the predicates to be met, but it s not necessary for both conditions to be met. What keyword should you use to connect the two predicates
9. Each predicate in a WHERE clause is evaluated to which of the following A True B Not C False D Unknown 10. Which clause allows you to group together values in a specified column A ROLLUP B HAVING C ORDER BY D GROUP BY
SQL: A Beginner s Guide
11. Which two operators can you use in a GROUP BY clause to return additional summary data
in a query result
A ROLLUP B HAVING C CUBE D DISTINCT 12. You re writing a SELECT statement that retrieves the CATEGORY and PRICE columns
from the COMPACT_DISC_STOCK table. You want to group data together first by the CATEGORY column and then by the PRICE column. Which SELECT statement should you use
13. You re writing a SELECT statement that retrieves the CATEGORY and PRICE columns
from the COMPACT_DISC_STOCK table. You want to group together data first by the CATEGORY column and then by the PRICE column. You then want to filter out any groups that have a PRICE value over 15.99. Which SELECT statement should you use
14. You re creating a SELECT statement that includes a SELECT clause, FROM clause,
WHERE clause, GROUP BY clause, and HAVING clause. From which clause will the HAVING clause receive output
A SELECT B FROM C WHERE D GROUP BY 15. How does the HAVING clause differ from the WHERE clause 16. From which clause does the ORDER BY clause receive output 17. Which keyword should you add to an ORDER BY clause to sort data in descending order
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