PostgreSQL tutorial – functions (Lesson 8)

Postgres tutorial lesson 8 presents how to write and execute functions and trigger functions. For more lessons, visit

Tag: postgresql function, postgresql, tutorial, sql, functions, databases

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10 thoughts on “PostgreSQL tutorial – functions (Lesson 8)

  1. puputneha says:

    Hello. I find your tutorial really helpful. Thank you. 🙂 Am trying to create a function which will be used to calculate fine in a library system. I need to take two dates (the date the client returns the book with the date that the client should have returned on). It is supposed to do some calculation and multiply by $5 (fine per day) then gives me the answer. Can you help me on doing that, please? 🙂 Thanks! 

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