What is the usage of nvl function?
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How many databases can sql express handle?
Explain ddl statements in pl/sql?
Explain constraints in sql?
how to findout the 100th maximum salary
What is the difference between row level and statement level trigger?
What is a constraint? Tell me about its various levels.
What are all different types of collation sensitivity?
GLOBAL TEMPORARY TABLE over Views in advantages insolving mutating error?
How can we avoid duplicating records in a query?
If we have n no of columns in a table, can we add new column in that table with not null constraint?
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