can any one say me exactly when and where alias and context are used in resolvi

can any one say me exactly when and where alias and context
are used in resolving a loop.
If possible try to give me a scenario also.

Question Posted / arun3409

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can any one say me exactly when and where alias and context are used in resolving a loop. If possi..

Answer / vams_gk

when a schema contains a loop u should create alias
table..alias concept not only for loops.we can also use
in fantraps.
coming to context :when u run two sql statements as a
singlestatemnt we will go for context detection process.

in traps we can choose contexts.
traps are two types chasam trap and fan trap.

these traps are situvation oriented
relation betwen muliple tables like this:
--------------------------------------0-

chasam trap :1:M:1
fan trap :1:M 1:M

really if u want o see the context how to look
tools->automatic detection----.detect contexts in BO XIr2

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can any one say me exactly when and where alias and context are used in resolving a loop. If possi..

Answer / kiran

small correction with chasm traps..its two one ends to
single table so that would be M:1:M relation between 3
tables..

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can any one say me exactly when and where alias and context are used in resolving a loop. If possi..

Answer / sivakumar

Resolving loop: Alias is the best method
Fan trap: Alias.
Chasm Trap: Context.

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