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Relationship-in-Ms-Access
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Nishan Lamichhane
May 07, 2020
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Relationship-in-Ms-Access
Relationship-in-Ms-Access
Nishan Lamichhane
May 07, 2020
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Transcript
RELATIONSHIP IN MS-ACCESS
2 ONE-TO-ONE
3 Tables before making Relationship HERE, Each record in table
1 has exactly one associated record in Table 2. Thus, the relationship will be 1 to 1
4 Making 1 to 1 Relationship
5 Tables after Making Relationship
6 ONE-TO-MANY
7 Tables Before Making Relationship HERE, Each record in table
1 has many(more than one) associated record in Table 2. Thus, the relationship will be 1 to Many
8 Tables Making 1 to Many Relationship
9 Tables after Making Relationship
10 MANY- TO- MANY
11 Tables Before Relationship Suppose a condition where, each Employee
can have multiple projects and Each project can have multiple Employee then, The relationship will be Many-to-Many. To address such relationship we need third table. Here we use Table-3 to associate Employee and Projects
12 Tables Making Many-to-Many Relationship 1-TO-MANY AND MANY-TO-1 YIELDS MANY
TO MANY
13 Tables After Making Many-to-Many Relationship PERSPECTIVE FROM EMPLOYEE
14 Tables After Making Many-to-Many Relationship PERSPECTIVE FROM PROJECT