![]() CREATE OR REPLACE FUNCTION triggersettimestamp () RETURNS TRIGGER AS BEGIN NEW. I personally care more about consistency and having a standard than a particular standard, as long as there's backing for that standard and not something made up randomly. Step 1: Create the Function Let's start by creating a Postgres function with the PL/pgSQL programming language (which is supported by default in PostgreSQL). ![]() Both timestamp and timestamptz uses 8 bytes for storing timestamp values. If you need locations and _at is confusing then by all means use a different standard. In PostgreSQL 2 temporal data types namely timestamp and timestamptz where one is without timezone and the later is with timezone respectively, are supported to store Time and Date to a column. ![]() For other types of locations we would use location_id. In addition, all accepted TIMESTAMP values are valid inputs for dates however, the TIME information is truncated. For something like user's ip information we would just have something ip_country, ip_city, etc. However, to get the date part only (without the time part), you use the double colons (::) to cast a DATETIME value to a DATE value. While I can understand that I haven't worked at a business where locations of events was needed. 1) Get the current date To get the current date and time, you use the built-in NOW () function. If I were in your shoes, I might use a different default for the timestamp. There was a comment about _at being used for locations. By default, PostgreSQL stores timestamps at the maximum possible precision. TIMESTAMP values are stored as the number of seconds since the Unix epoch. Since this is not used nearly as frequently in my experience as at and on using time is sufficient, plus it's short enough. Each column in a database table is required to have a name and a data type. How to Query Date and Time in PostgreSQL select select currentdate - date currenttime - time select from events time between 2018-01. ![]() It's concise and when used as a standard it's not confusing.įor times without dates which is generally used for scheduling more than recording a time something occurred as that would be a timestamp: It's concise and if used as a standard there's not confusion. ![]()
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