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To concatenate string_arr in PostgreSQL, you can use the array_to_string function. This function converts an array to a single string with elements separated by a delimiter of your choice. Simply pass the array you want to concatenate and the delimiter you want to use as arguments to the function. This will give you a concatenated string with the elements of the original array.
What is the function for concatenating elements in PostgreSQL?
In PostgreSQL, the function for concatenating elements is CONCAT.
Example:
SELECT CONCAT('Hello', ' ', 'World');
Output:
Hello World
What is the command for merging text arrays in PostgreSQL?
In PostgreSQL, the command for merging text arrays is array_cat. This function allows you to concatenate two or more arrays together.
Example:
SELECT array_cat(ARRAY['apple', 'banana'], ARRAY['cherry', 'date']);
This will result in a new array: {"apple", "banana", "cherry", "date"}.
How to concatenate arrays with special characters in PostgreSQL?
In PostgreSQL, you can concatenate arrays that contain special characters using the || operator.
Here's an example of how to concatenate two arrays containing special characters:
SELECT ARRAY['abc', 'def'] || ARRAY['123', '456'];
This will output the concatenated array {"abc","def","123","456"}. You can also use the array_cat() function to concatenate arrays:
SELECT array_cat(ARRAY['abc', 'def'], ARRAY['123', '456']);
This will also output {"abc","def","123","456"}.
You can concatenate arrays with different types of special characters, such as strings, integers, or any other data type supported by PostgreSQL.