![]() ![]() If you need to create a formatted timestamp field for some other date and time, you can do that something like this: Note that the PHP date function defaults to the current date and time, which is exactly what I need for my purposes here. Getting a timestamp for some other date and time 'project_count_type' => $project->project_count_type,Īs you can see in the lines I’ve made bold, I’m inserting my PHP timestamp variable into two SQL fields. # get the current time in the proper format for a sql timestamp field $project->project_count_type = $form_state A Drupal 7 SQL INSERT with Timestamp exampleĪlthough this isn't a standard off-the-shelf PHP/MySQL INSERT statement, here's what a SQL INSERT query looks like when I use this with Drupal 7: ![]() Note: Thanks to the commenters below who suggest using H:i:s instead of G:i:s. You can then use this formatted timestamp string in a PHP MySQL insert. If you print this out, your $timestamp field will now contain contents like this: However, if you want to do this all in PHP (or need to, depending on what framework you're working with), you can get the current date and time in the proper format using just PHP, like this: So that’s one way to populate a SQL timestamp field in a SQL INSERT query. I just tested this with PHP and MySQL, and it works fine. (user_id, name, last_updated, date_created) If you’re using plain old PHP and a database like MySQL, you can use the SQL now() function to insert data into a SQL timestamp field like this: Note: You might not need to create a PHP dateįirst off, you may not need to create a date in PHP like this. VALUES ('take out the trash') RETURNING * Ĭompleted_at | 17:40:28.PHP date/time FAQ: How do I create a date in the proper format to insert a SQL Timestamp field into a SQL database? +-Ĭompleted_at | INSERT INTO todos (content) That's all it takes! INSERT INTO todos (content) Now both the created_at and updated_at columns will be saved correctly whenever we insert and update rows in the table. It will do so whenever a row is updated in the todos table. This trigger will execute the trigger_set_timestamp function that we defined earlier. ) Step 3: Create the Trigger CREATE TRIGGER set_timestampĮXECUTE PROCEDURE trigger_set_timestamp() Updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), Triggers must be attached to tables, so let's create a simple table: CREATE TABLE todos (Ĭreated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(), Note: You can find more information on Postgres trigger variables here. As you can see in the example function, PostgreSQL allows us to read from and write to any field in the NEW object before it gets saved to disk. It contains the data that's being inserted or updated. This opens up a special variable for us to use: In this block of code, we defined our function with a RETURNS TRIGGER. CREATE OR REPLACE FUNCTION trigger_set_timestamp() Let's start by creating a Postgres function with the PL/pgSQL programming language (which is supported by default in PostgreSQL). In this case, to update a Postgres timestamp, you need to run a function that automatically sets an updated_at value before any UPDATE operation. Triggers allow you to define functions that execute whenever a certain type of operation is performed. But for tracking updates, you need to make use of Postgres triggers. In PostgreSQL, you can track the creation date of a database record by adding a created_at column with a default value of NOW(). ![]() Many applications require database timestamps whenever a database record is created or updated. ![]()
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