This piece explains why using a normalised version of the Index information link could lead to poor performance.

Update the DETAILRENTAL table to set the values in DETAIL_RETURNDATE to include a time component. Make each entry match the values shown in the following table. TABLE P8.53 UPDATES FOR THE DETAILRENTAL TABLE RENT_NUM VID_NUM DETAIL_RETURNDATE 1001 34342 02-MAR-18 10:00am 1001 61353 03-MAR-18 11:30am 1002 59237 04-MAR-18 03:30pm 1003 54325 09-MAR-18 04:00pm 1003 61369 09-MAR-18 04:00pm 1003 61388 09-MAR-18 04:00pm 1004 44392 07-MAR-18 09:00am 1004 34367 07-MAR-18 09:00am 1004 34341 07-MAR-18 09:00am 1005 34342 05-MAR-18 12:30pm 1005 44397 05-MAR-18 12:30pm 1006 34366 04-MAR-18 10:15pm 1006 61367 1007 34368 1008 34369 05-MAR-18 09:30pm 1009 54324 1001 34366 02-MAR-18 10:00am

Problems 2224 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_PRICE, P.V_CODE, V_STATE FROM PRODUCT P, VENDOR V WHERE P.V_CODE = V.V_CODE AND V_STATE = 'NY' AND V_AREACODE = '212' ORDER BY P_PRICE; Write the commands required to create the indexes you recommended in Problem 22.

Access path A database table is composed of records and fields hold data. Data is stored in records. A field is a part of a record and contains a single piece of data for the subject of the record. The access path for finding the list of books is AUTHOR: AuthorID, Lname BOOKAUTHOR: AuthorID, ISBN BOOKS: Pubdate, ISBN

Problems 27 and 28 are based on the following query: SELECT P_CODE, P_DESCRIPT, P_QOH, P_PRICE, V_CODE FROM PRODUCT WHERE P_QOH P_MIN AND P_MIN = P_REORDER AND P_REORDER = 50 ORDER BY P_QOH; What indexes would you recommend? Write the commands to create those indexes.

Define second normal form. What types of problems might you encounter using tables that are not in second normal form?