meljun cortes computer application chp 6 ms access sql

7/31/2019 MELJUN CORTES Computer Application Chp 6 Ms Access SQL

1/22 7-1

Chapter 7: Microsoft Access II

Learning Outcomes

- Strutured Query Language (SQL)

- SQL Exercise

- Database security


2/22

7-2

7.1 Strutured Query Language (SQL)

A SQL statement is an expression that defines an SQL command, such as SELECT,

UPDATE, or DELETE, and includes clauses such as WHERE and ORDER BY. SQL

strings/statements are typically used in queries and in aggregate functions.

A SQL command allows data in a table to be added, updated, shown or deleted.

Select Queries.

Select Table1 Query

Select View.

Select SQL View.

1) Select

Queries

2) Click

Here

3 Select View

4) Select SQL View


3/22

7-3

The system generated SQL statement is created.

System Generated

SQL statement


4/22

7-4

Changing the SQL command.

Delete the field Name.

Delete Name


5/22

7-5

Select X.

Select Yes to save the change.

ClickHere

Select

Yes


6/22

7-6

Double click on Table1 Query.

You will see that the Name field is deleted.

Double Click Here


7/22

7-7

Searching a particular record using SQL.


Select View SQL View

Delete the ; at the end of FROM Table1.

Add in WHERE [StudID]=1003;.

Click on X.

Select Yes to save.

1) Double Click Here

2) Select View SQL View

3) Add in this

Line


8/22

7-8


Peters record is shown.

Double Click Here

Peters

record is

shown


9/22

7-9


Select View SQL View


Add in WHERE [Name]= Mary ; .

Click on X.

Select Yes to save.

2) Select View SQL View


3) Add in this

Line


10/22

7-10


Marys record is shown.


Marys record is

shown


11/22

7-11

7.2 SQL Exercise

Select Table

Double Click on Creat e table by entering data

Key in the fields with the corresponding data types.

Click Yes to save.

Save As Table2.

1)

Select

Table


3) Key

inthese

fields

4) Click Yes


12/22

7-12

Double Click on Table2.

Key in the 3 records as shown below.

Click on Yes to save.

1) Double

Click Here

2) Key in

these

records

3) Click Yes to save


13/22

7-13

Click on Queries.

Select under Tables/Queries Table:Table2.

Click on the double arrow to select all the fields.

Click Finish.

1) Select

Queries

Select

Table2

Click Here

to select

all fields

Click Finish


14/22

7-14

Select Queries.

Select Table2 Query.

Select View SQL View.

Select Queries

Select Table2 Query

Select View

SQL View


15/22

7-15

Click on View SQL View.


Add in WHERE [GameID]= 1002 ; .

Click on X.

Select Yes to save.Select View SQL View

Add this Line in


16/22

7-16


Only the record Half Life is displayed.

Double click here


17/22


18/22

7-18

Database Security

Select File Open

Select Open Open Exclusive.

1) Select File - Open

2) Select

Open-

OpenExclusive


19/22

7-19

7.3 Select Tools Security Set Database Password

Select Tools Security

Set Database Password


20/22

7-20

Key in the password as 1234.

Verify the password as 1234.

Click OK.

Key in the

password

as 1234

Verify the

password as

1234

Click OK.


21/22

7-21

Close the database file by clicking on the X.

Select File - Open.

Select the database file to open it.

It will prompt you for the password.

Enter the password 1234.

Click OK.

Click

OK


22/22

Exercise

1) Create a table called Employee with the following fields:

EmpID : NumericName : TextSalary : Currency

Create the following records into this table :

1004 John Lim $20001005 George Tan $25001006 Mary Chan $4000

2) Create a query to shown the employees with salary more than $2000.

3) Create a query to show the employee with EmpID = 1006.

meljun cortes computer application chp 6 ms access sql

Documents