The timestamp data type is used to store date and time values together, including both the date and the time of day. It’s a combination of the date and time information, represented as a single data type. Here are some key points about the timestamp data type: Here’s an example of using the timestamp data…

The time data type is used to store time of day values without any associated date information. It represents a specific time on the clock, including hours, minutes, seconds, and fractions of a second. Here are some key points about the time data type: Here’s an example of using the time data type: CREATE TABLE…

The date data type is used to store dates without any associated time information. It represents a specific day in the calendar, including the year, month, and day. Here are some key points about the date data type: Here’s an example of using the date data type: CREATE TABLE tasks (task_id serial PRIMARY KEY, task_name…

The text data type is used to store variable-length character strings, similar to the varchar data type. However, there is a subtle difference between text and varchar. While both types store strings of varying lengths without padding, the text type is more versatile and internally optimized for efficient storage. Here are some key points about…

The varchar data type is used to store variable-length character strings. Unlike the char data type, which stores strings of fixed length, the varchar data type can store strings of varying lengths without padding. Here are some key points about the varchar data type: Here’s an example of using the varchar data type: CREATE TABLE…

In PostgreSQL, the char data type, also known as the fixed-length character string type, is used to store strings of fixed length. It’s important to note that the char type is not the same as the variable-length character string type (varchar). Here are some key points about the char data type: Here’s an example of…

The numeric data type, also known as the decimal data type, is used to store arbitrary precision decimal numbers. This data type is particularly useful when you need to store numeric values with a high degree of precision, such as financial calculations or scientific computations. Here are some key points about the numeric data type:…

The bigint data type is used to store large whole numbers (integers) within a much larger range than the regular integer data type. It’s a 64-bit signed integer type, which means it can represent much larger and smaller values compared to the integer type. Here are some key points about the bigint data type in…

The integer data type is used to store whole numbers (integers) within the range of -2,147,483,648 to 2,147,483,647 in PostgreSQL database. It’s a 32-bit signed integer type. Here are some key points about the integer data type in PostgreSQL: Here’s an example of using the integer data type: CREATE TABLE employees ( employee_id serial PRIMARY…

PostgreSQL is a popular open-source relational database management system (RDBMS) that supports a wide range of data types to accommodate different kinds of data, from basic integers and text to more complex structures like arrays and JSON documents. Here are some of the common data types provided by PostgreSQL: These are just some of the…