Decode and NVL

Two oracle SQL functions, that are interesting.
Decode to work as (Select Case)
And NVL to work as fixing the DBNull situation in database, or replace

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Decode(X, Y, Z, De)    > > > IF X = Y bring Z otherwise bring De
                                    Decode(X, Y1, Z1, Y2, Z2, Y3, Z3, De)    > > >    If X = Y1 bring Z1 Elseif X = Y2 bring Z2 Elseif X = Y3 bring Z3 otherwise bring De

NVL(Nuu, New)    > > > If Nuu is null bring New otherwise bring Nuu

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ANmarAmdeen
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v1.0

Friday
February
7
2020