Sql technical questions
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What does count (*) do in sql?
What is nosql example?
How write primary and foreign key relationship between two tables without using constraints? u can use any of procedure/function/trigger and any sql?
Can we use SQL%ISOPEN in implicit cursors? Does this attribute works properly in Implicit Curosors?
what is the difference between join and union? : Sql dba
What is acid property in a database?
What are types of indexes in sql?
how to retrieve only duplicate values in a table
When is a declare statement required?
Why does %isopen return false for an implicit cursor?
What are local and global variables and their differences?
why not null constraint showing its constraint type as 'c'