PostgreSQL offers multiple functions to get the current date and time with or without the time zone, such as NOW(), CURRENT_TIMESTAMP, LOCALTIMESTAMP, etc.
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How to Use LIKE Operator in PostgreSQL
PostgreSQL provides two wildcards: percent % and underscore _ that are used with the aid of the LIKE operator to perform pattern matching.
How to Use DATE_TRUNC() Function in PostgreSQL
In PostgreSQL, the DATE_TRUNC() function trims unnecessary values from the date and time and returns a result with specific precision.
How To Replace a String Using REPLACE() Function in PostgreSQL
The REPLACE() is a very convenient function that is used to search and replace all the appearances of a string with a new substring/text.
How to Find Length of a String in PostgreSQL
In PostgreSQL, the LENGTH() function is used to find the length of a string. It takes a string as a parameter and returns the total number of characters.
How to Describe a Table in PostgreSQL
PostgreSQL provides several ways to describe a table. For example, the “\d” command, “\dt” command, and information_schema.
How to Delete Multiple Rows From a Table in PostgreSQL
In PostgreSQL, the DELETE statement is used with the collaboration of the WHERE clause and IN operator to delete multiple rows from a table.
How to Insert Multiple Rows to a Table in PostgreSQL
The INSERT INTO statement is used to insert single or multiple rows into a table. To insert multiple rows in a table, the comma-separated syntax is used.
How to Use FETCH Clause in PostgreSQL
PostgreSQL provides a FETCH clause that is used to fetch/retrieve a part of rows returned by any query. It performs the same functionality as the LIMIT clause.
How to Use the Truncate Table Command in PostgreSQL
PostgreSQL provides several methods for truncating a specific table. The TRUNCATE TABLE command is one of them. It can be executed from the psql and pgAdmin.
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