信息時代的管理信息系統(tǒng)Module_J_Web課件

1、Extended Learning Module J (Office 2007 Version)Implementing a Database with Microsoft AccessSOLOMON DATABASEThe steps to creating a database areDefine entity classes and primary keysDefine relationships among the entity classesDefine fields for each relation (file)Use a data definition language to

2、create the database, which is the focus of this Module SOLOMON DATABASEIn Figure J.1 (p. 2) on the following 3 slides, weve recreated the correct database structure from Extended Learning Module CRevisit Module C if you need a refresher SOLOMON DATABASESOLOMON DATABASESOLOMON DATABASECreating Solomo

3、ns DatabaseData dictionary - contains the logical structure for the informationTo create the Solomon Enterprise database:Start Microsoft AccessClick on Blank Database in the upper left corner of the screenEnter Solomon Enterprises.mdb as the database nameClick on Create Creating Solomons DatabaseCli

4、ck on Blank DatabaseEnter a database name and click on CreateCreating Solomons DatabaseOur recommendation: Create a relation (table) in Design view:Must switch from Datasheet View to Design ViewClick on View in the upper left corner and then Design ViewEnter a table nameUse the Design View to enter

5、the specifications for the table Creating Solomons DatabaseTo switch to Design View, click on View and then Design ViewThis is Design View our recommendation for creating the tables in a databaseCreating the Raw Material RelationEnter the four fields of the Raw Material relationRaw Material IDRaw Ma

6、terial NameQOHSupplier IDClick on the Raw Material ID row and then the key button to designate Raw Material ID as the primary key Creating the Raw Material RelationPrimary key identifier and the Primary key buttonIntegrity constraints for Raw Material IDCreating the Concrete Type RelationCreating th

7、e Bill of Material RelationWe created (in Extended Learning Module C) the Bill of Material relation to eliminate the many-to-many relationship between the Concrete Type and Raw Material relations Creating the Bill of Material RelationThe Bill of Material relation has a primary key composed of two fi

8、elds (composite primary key):Concrete Type Raw Material IDComposite primary key - consists of the primary key fields from the two intersecting relations Creating the Bill of Material RelationComposite primary keyDEFINING RELATIONSHIPS WITHIN SOLOMONS DATABASEThe final structural task is to define ho

9、w all the relations relate to each otherThat is, link primary and foreign keysForeign key - a primary key of one file (relation) that appears in another file (relation) Primary and Foreign Key Logical TiesDefining Relationships between RelationsTo create relationshipsClick on Database Tools in the m

10、enu area and then click on the Relationships button Make each relation appear on the palette by highlighting each relation name and clicking on AddThen click on the Close button Defining Relationships between RelationsRelationship paletteSelect tables and click on AddDefining Relationships between R

11、elationsENTERING INFORMATION INTO SOLOMONS DATABASETo enter information, you simply double-click on the appropriate relation nameSupplier relation structureEntering InformationReferential IntegrityReferential integrity ensures consistency. For example, that you dont put a non-existent Supplier ID in

12、to the Raw Material relationThe relationships we set up for referential integrity guard against bad informationIntegrity constraints rules that help ensure the quality of the information Enforcing Referential IntegrityChange the Structure of a RelationClick on View and then Design View and make the

13、necessary changesCREATING A SIMPLE QUERY USING ONE RELATIONQuery-by-example (QBE) tool - helps you graphically design the answer to a question Suppose we wanted to see a list of raw materials that showsRaw Material NameSupplier ID Creating a Simple Query Using the Raw Material RelationFirst, click o

14、n Create and then Query DesignSecond, select the table, click on Add, and then close the box.Creating a Simple Query Using the Raw Material RelationThe result of the queryDrag and drop the appropriate field names and then click on the exclamation point (Run).Creating a Simple Query with a ConditionS

15、et the condition hereCREATING AN ADVANCED QUERY USING MORE THAN ONE RELATIONSuppose we want a query that showsAll order numbersDate of ordersWhere the goods were deliveredThe contact personThe truck involved in each deliveryThe truck driver in each delivery Steps to Create an Advanced QueryClick on

16、Create in the menu area and then Query DesignIn the Show Table dialog boxSelect and Add the relation names Close the Show Table dialog box Tables linked appear are joined by lines with 1 beside the table with the primary keyThe infinity sign by the table with the foreign key Steps to Create an Advan

17、ced QueryDrag and drop the fields that you want from the appropriate relation into the QBE grid in the order that you want Click on the exclamation point (Run) in the button bar to see the results of the query Steps to Create an Advanced QuerySteps to Create an Advanced QuerySteps to Create an Advan

18、ced QueryGENERATING A SIMPLE REPORTClick on Create in the menu area and then the Report Wizard buttonChoose tables and/or queries: Lets you choose which table/query you wantChoose fields: Lets you choose the fields you want Grouping, Sorting, Layout of ReportGrouping: Lets you specify grouping of in

19、formation (we chose the default)Sorting: Allows you to specify sorting (we chose the default)Layout and orientation: Allows you to select layout and page orientation (we chose the default) Style and Header of ReportStyle: Allows you to choose from among predefined report styles (we chose the default

20、)Report header: Allows us to enter a title for the report. The Report: Shows all customers and phone numbers. Choose Table/Query and Fields1. Start to create a report2. Choose tables and/or queriesChoose Table/Query and Fields3. Choose fields4. GroupingGrouping, Sorting, Layout, Style, and Title5. S

21、orting6. Layout and orientationGrouping, Sorting, Layout, Style, and Title7. Style8. Report HeaderGrouping, Sorting, Layout, Style, and TitleREPORT WITH GROUPING, SORTING, AND TOTALSSay we want to create the Supply Chain Management report from Extended Learning Module CFirst, create a queryThen, put

22、 the query into the report generator Steps for Creating a Report with Grouping, Sorting, and TotalsClick on Create in the menu area and click on the Report Wizard buttonChoose tables/queries: Query: Supply Chain QueryChoose fields: Select all fields by clicking on the double greater-than sign () Spe

23、cify Table/Query FieldsGrouping and Sorting Information Top-level grouping: Allows you to choose ordering. Since we created a query, Access has defaulted to the first fieldFurther grouping: Lets you specify groups within the top grouping of Concrete Type, but we dont want any further groupingSorting

24、: Next we have a chance to sort our information Steps for Grouping InformationSteps for Sorting InformationTotaling Information in a ReportTotaling: The sorting screen also has a Summary Options buttonWithin Summary Options you can choose what type of summary you want Totaling Information in a ReportFormatting the ReportOverall structure of re