A constraint is a rule or limitation that we place on the data in a database that we can put into a column(s). A constraint is part of the table. we can apply constraints when we create the table or ...

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case when ix.is_unique_constraint = 1 then ' UNIQUE ' else '' END ,case when ix.is_primary_key = 1 then ' PRIMARY KEY ' else '' END , ix.type_desc, case when ix.is_padded=1 then 'PAD_INDEX = ON, ' ...

When I am working with an Oracle database, I still find myself using SQL*Plus for many quick and dirty database queries. In particular, I often look up constraints in SQL*Plus. In this post, I look at ...