---
title: 'PostgreSQL jsonb_object() Function'
page_title: 'PostgreSQL jsonb_object() Function'
page_description: 'In this tutorial, you will learn how to use the PostgreSQL jsonb_object() function to create a JSON object from a text array.'
prev_url: 'https://www.postgresqltutorial.com/postgresql-json-functions/postgresql-jsonb_object/'
ogImage: '/postgresqltutorial/film.png'
updatedOn: '2024-02-25T13:23:04+00:00'
enableTableOfContents: true
previousLink:
  title: 'PostgreSQL jsonb_build_object() Function'
  slug: 'postgresql-json-functions/postgresql-jsonb_build_object'
nextLink:
  title: 'PostgreSQL row_to_json() Function'
  slug: 'postgresql-json-functions/postgresql-row_to_json'
---

**Summary**: in this tutorial, you will learn how to use the PostgreSQL `jsonb_object()` function to create a JSON object from a text array.

## Introduction to the PostgreSQL jsonb_object() function

The `jsonb_object()` function allows you to build a JSON object from a [text](../postgresql-tutorial/postgresql-char-varchar-text) [array](../postgresql-tutorial/postgresql-array).

Here’s the syntax of the `jsonb_object()` function:

```sql
jsonb_object(text[]) → jsonb
```

In this syntax, `text[]` array can be:

- A one\-dimensional array that contains an even number of elements. The elements are the alternating key/value pairs.
- A two\-dimensional array. Each inner array has exactly two elements representing the key/value pair.

The `jsonb_object()` function returns a JSON object constructed from the text array with the type of JSONB.

The `jsonb_object()` function has another syntax that takes keys and values pairwise from separate text arrays:

```sql
jsonb_object ( keys text[], values text[] ) → jsonb
```

In this syntax, the keys and values arrays in this syntax have the same number of elements. The `keys` array contains the keys of the JSON object whereas the `values` array contains the corresponding values of the `keys`.

## PostgreSQL jsonb_object() function examples

Let’s explore some examples of using the `jsonb_object()` function.

### 1\) Basic PostgreSQL jsonb_object function examples

The following example uses the `jsonb_object()` function to create a JSON object from a text array:

```sql
SELECT
  jsonb_object('{"name","John", "age", 22}');
```

Output:

```text
         jsonb_object
-------------------------------
 {"age": "22", "name": "John"}
(1 row)
```

Alternatively, you can use a two\-dimensional arrays to create the JSON object:

```sql
SELECT
  jsonb_object(
    '{{"name","age"},{"John", 22}}'
  );
```

Output:

```text
         jsonb_object
-------------------------------
 {"John": "22", "name": "age"}
(1 row)
```

Additionally, you can use two arrays including `keys` and `values` to create the JSON object:

```sql
SELECT
  jsonb_object(
    '{"name","age"}', '{"John", 22}'
  );
```

Output:

```text
         jsonb_object
-------------------------------
 {"age": "22", "name": "John"}
(1 row)
```

### 2\) Using the jsonb_object() function with table data

We’ll use the `film` table from the [sample database](../postgresql-getting-started/postgresql-sample-database).

![](/postgresqltutorial/film.png)The following example uses the `jsonb_object` function to create an object from the `title` and `release_year` from the `film` table:

```sql
SELECT
  jsonb_object(
    array[title], array[release_year]::text[]
  )
FROM
  film
ORDER BY
  title;
```

Output:

```text
         jsonb_object
------------------------------
 {"Academy Dinosaur": "2006"}
 {"Ace Goldfinger": "2006"}
 {"Adaptation Holes": "2006"}
 {"Affair Prejudice": "2006"}
 {"African Egg": "2006"}
...
```

## Summary

- Use the PostgreSQL `jsonb_object()` function to create a JSON object from a text array.