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PostgreSQL LTRIM function.

The PostgreSQL LTRIM function removes all specified characters on the left side of the line….

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PostgreSQL operator ||.

PostgreSQL operator || allows combining 2 or more lines together….

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PostgreSQL substring function.

PostgreSQL substring function allows extracting substring from a string….

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SQL*Loader: upload to Oracle database and conversion.

In this article, we will talk about how to upload information to an Oracle database, namely, we will consider a utility to import data into an Oracle …

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PostgreSQL to_date function.

The to_date function in PostgreSQL converts a string into a date….

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