The PostgreSQL “TIMESTAMP” or “TIMESTAMP WITHOUT TIME ZONE” data type stores a timestamp value without the time zone information.
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PostgreSQL TIMESTAMPTZ: Timestamp With Time Zone Data Type
The PostgreSQL “TIMESTAMPTZ” or “TIMESTAMP With TIME ZONE” data type is used to store a timestamp value that includes the time zone information.
TO_TIMESTAMP: How to Convert a String to TIMESTAMP in PostgreSQL
The TO_TIMESTAMP() in Postgres is a built-in function for converting a string to a timestamp data type. Users can easily manipulate and analyze DateTime information using this function.
IS NOT NULL Operator/Condition in PostgreSQL
In Postgres, the IS NOT NULL operator tests whether an expression or a column contains a non-null value. It is used in a SELECT statement to return only non-null records from a column.
PostgreSQL - How to Insert Data Into a Table Using Python
Use the “connect()” method of “psycopg” module to establish a connection with the Postgres database using python. Next, create a cursor object and execute the INSERT query via the cursor object.
How to Convert the Case of a String in PostgreSQL
In PostgreSQL, the UPPER(), LOWER(), and INITCAP() functions are used for letter case conversion.
PostgreSQL SPLIT_PART Function: Extracting Data From a String
The SPLIT_PART() function accepts three arguments: a string, a delimiter/separator, and a position. Consequently, it retrieves the extracted data from the given string.
How to Group by Date/Time in PostgreSQL
PostgreSQL offers various built-in functions to group data by time, such as the DATE_TRUNC(), EXTRACT(), and DATE_PART() functions.
PostgreSQL Logical Operators: AND, OR, NOT
PostgreSQL has three main logical operators: OR, AND, and NOT. All these operators retrieve a boolean value and are hence also referred to as Boolean operators.
How to Drop a Default Value From a Column in PostgreSQL
To drop/remove the default value from a column, you need to use the “DROP DEFAULT” keyword with the assistance of the “ALTER TABLE” command.
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