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PostgreSQL comments.

Can you place comments in your SQL statements in PostgreSQL? These comments can appear in one line or cover several lines. Let’s see how to do that.

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Configuring SQL*Plus environment for Oracle application developer.

It is very important for a professional developer (programmer) to be able to work effectively in the SQL*Plus environment. It is important to be able …

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PostgreSQL extract function.

PostgreSQL extract function extracts parts from the date….

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PostgreSQL date_part function.

PostgreSQL date_part  function extracts parts from the date….

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PostgreSQL current_timestamp function.

PostgreSQL current_timestamp function returns the current date and time with the time zone….

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