The basic unit in PL/SQL is called a block, which is made up of three parts: a declarative part, an executable part, and an exception-building part.An unbiased look at real-life analytics success stories, including a Time Warner Cable case study, and tips on how to evaluate big data tools.
Many times, however, it is more efficient to use a set-based approach to create new rows.
Update Flag = 'T' It is not working, please help how to proceed. Hi Saurav, Thanks for the reply, here is the error: "Server: Msg 156, Level 15, State 1, Line 1 Incorrect syntax near the keyword 'as'." I am using MS query analyzer.
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Without PL/SQL, Oracle must process SQL statements one at a time and, in a network environment, this can affect traffic flow and slow down response time.
PL/SQL blocks can be compiled once and stored in executable form to improve response time.