{"id":3268,"date":"2024-04-25T10:12:44","date_gmt":"2024-04-25T03:12:44","guid":{"rendered":"https:\/\/www.sqlitetutorial.net\/?page_id=3268"},"modified":"2024-04-25T10:14:14","modified_gmt":"2024-04-25T03:14:14","slug":"sqlite-json_extract-function","status":"publish","type":"page","link":"https:\/\/www.sqlitetutorial.net\/sqlite-json-functions\/sqlite-json_extract-function\/","title":{"rendered":"SQLite json_extract() Function"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you will learn how to use the SQLite <code>json_extract()<\/code> function to extract one or more JSON values from JSON data.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Introduction to the SQLite json_extract() function<\/h2>\n\n\n\n<p>In SQLite, the <code>json_extract()<\/code> function allows you to extract one or more values from <a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-json\/\">JSON data<\/a>.<\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>json_extract()<\/code> function:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">json_extract(json_value, path1 &#91;, path2]...)<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this syntax:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>json_value<\/code> is the JSON data from which you want to extract values.<\/li>\n\n\n\n<li><code>path1<\/code>, <code>path2<\/code>, &#8230; is the JSON path that locates the values in the <code>json_value<\/code>. If you provide multiple JSON paths, the <code>json_extract()<\/code> function returns the extracted values as elements of a JSON array.<\/li>\n<\/ul>\n\n\n\n<p>Notice that if you provide one JSON path argument (<code>path1<\/code>), the <code>json_extract()<\/code> function returns an SQL value. <\/p>\n\n\n\n<p>However, if you provide two or more path arguments, (<code>path1<\/code>, <code>path2<\/code>, and so on), the <code>json_extract()<\/code> function returns a JSON value i.e., a JSON array that holds the extracted values.<\/p>\n\n\n\n<p class=\"note\">Notice that MySQL&#8217;s json_extract() function always returns a JSON value.<\/p>\n\n\n\n<p>If the path does not locate any element in <code>json_value<\/code>, the <code>json_extract()<\/code> function returns <code>NULL<\/code>. Additionally, the <code>json_extract()<\/code> function also returns <code>NULL<\/code> if any argument is <code>NULL<\/code>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SQLite json_extract() function examples<\/h2>\n\n\n\n<p>Let&#8217;s use the <code>json_extract()<\/code> function to extract values from JSON data.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1) Extracting a single value<\/h3>\n\n\n\n<p>The following example uses the <code>json_extract()<\/code> function to extract the name from a JSON value:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> json_extract(<span class=\"hljs-string\">'{\"name\": \"Alice\", age: 22}'<\/span>, <span class=\"hljs-string\">'$.name'<\/span>) <span class=\"hljs-keyword\">name<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">name\n<span class=\"hljs-comment\">-----<\/span>\nAlice<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this example, the path <code>'$.name'<\/code> locates the name property of a JSON object. Therefore, the <code>json_extract()<\/code> function returns the value of the name property, which is Alice.<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> typeof(json_extract(<span class=\"hljs-string\">'{\"name\": \"Alice\", age: 22}'<\/span>, <span class=\"hljs-string\">'$.name'<\/span>)) <span class=\"hljs-keyword\">type<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>The result is not a JSON value but has a type of <code>TEXT<\/code>. You can verify it using the <code>typeof()<\/code> function:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"> <span class=\"hljs-keyword\">SELECT<\/span> typeof(json_extract(<span class=\"hljs-string\">'{\"name\": \"Alice\", age: 22}'<\/span>, <span class=\"hljs-string\">'$.name'<\/span>)) <span class=\"hljs-keyword\">type<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">type\n<span class=\"hljs-comment\">----<\/span>\ntext<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h3 class=\"wp-block-heading\">2) Extracting multiple values<\/h3>\n\n\n\n<p>The following example uses the <code>json_extract()<\/code> function to extract multiple values specified by multiple paths:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-7\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> json_extract(<span class=\"hljs-string\">'{\"name\": \"Alice\", age: 22}'<\/span>, <span class=\"hljs-string\">'$.name'<\/span>, <span class=\"hljs-string\">'$.age'<\/span>) <span class=\"hljs-keyword\">result<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-8\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">result\n<span class=\"hljs-comment\">------------<\/span>\n&#91;\"Alice\",22]<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-8\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this example, we use multiple JSON paths:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>'$.name'<\/code> &#8211; locates the <code>name<\/code> property.<\/li>\n\n\n\n<li><code>'$.age'<\/code> &#8211; matches the <code>age<\/code> property.<\/li>\n<\/ul>\n\n\n\n<p>The <code>json_extract()<\/code> function extracts values and puts them into a JSON array. The type of the result is JSON, not <code>TEXT<\/code>.<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-9\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> typeof(json_extract(<span class=\"hljs-string\">'{\"name\": \"Alice\", age: 22}'<\/span>, <span class=\"hljs-string\">'$.name'<\/span>, <span class=\"hljs-string\">'$.age'<\/span>)) <span class=\"hljs-keyword\">type<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-9\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-10\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">type\n<span class=\"hljs-comment\">----<\/span>\ntext<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-10\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Notice that SQLite uses the <code>TEXT<\/code> storage type to store JSON. There is no separate JSON data type.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3) Extracting array elements from JSON data<\/h3>\n\n\n\n<p>The following example uses the <code>json_extract()<\/code> to extract the second array element from a JSON array:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-11\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> json_extract(<span class=\"hljs-string\">'&#91;\"red\",\"green\",\"blue\"]'<\/span>, <span class=\"hljs-string\">'$&#91;2]'<\/span>) color;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-11\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-12\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">color\n<span class=\"hljs-comment\">-----<\/span>\nblue<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-12\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this example, the JSON path &#8216;$[2]&#8217; specifies the second element of the top-level array of a JSON document.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4) Extracting nested values from JSON data<\/h3>\n\n\n\n<p>The following example uses the <code>json_extract()<\/code> to extract a nested value from JSON data:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-13\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> json_extract(<span class=\"hljs-string\">'{\"name\": \"t-shirt\",\"attributes\": {\"size\": \"XL\", \"colors\": &#91;\"red\",\"green\",\"blue\"]}}'<\/span>, <span class=\"hljs-string\">'$.attributes.size'<\/span>) <span class=\"hljs-keyword\">size<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-13\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-14\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">size\n<span class=\"hljs-comment\">----<\/span>\nXL<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-14\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this example, the <code>'$.attributes.size'<\/code> path specifies the size property of the attributes property of the top-level JSON object in JSON data.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5) Extracting data with a non-existent path<\/h3>\n\n\n\n<p>The following example uses the <code>json_extract()<\/code> function to extract values from a JSON with a path that does not exist (<code>'$.color'<\/code>):<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-15\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> json_extract(<span class=\"hljs-string\">'{\"name\": \"t-shirt\",\"attributes\": {\"size\": \"XL\", \"colors\": &#91;\"red\",\"green\",\"blue\"]}}'<\/span>, <span class=\"hljs-string\">'$.name'<\/span>,<span class=\"hljs-string\">'$.color'<\/span>) <span class=\"hljs-keyword\">result<\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-15\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-16\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">result\n<span class=\"hljs-comment\">----------------<\/span>\n&#91;\"t-shirt\",null]<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-16\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h3 class=\"wp-block-heading\">6) Using SQLite json_extract() function with table data<\/h3>\n\n\n\n<p>First, <a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-create-table\/\">create a new table<\/a> called <code>books<\/code> to store book data:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-17\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">CREATE<\/span> <span class=\"hljs-keyword\">TABLE<\/span> books(\n    <span class=\"hljs-keyword\">id<\/span> <span class=\"hljs-built_in\">INTEGER<\/span> PRIMARY <span class=\"hljs-keyword\">KEY<\/span>,\n    title <span class=\"hljs-built_in\">TEXT<\/span> <span class=\"hljs-keyword\">NOT<\/span> <span class=\"hljs-literal\">NULL<\/span>,\n    <span class=\"hljs-keyword\">data<\/span> <span class=\"hljs-built_in\">TEXT<\/span> <span class=\"hljs-keyword\">NOT<\/span> <span class=\"hljs-literal\">NULL<\/span>\n);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-17\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Second, <a href=\"https:\/\/www.sqlitetutorial.net\/sqlite-insert\/\">insert rows<\/a> into the <code>books<\/code> table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-18\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">INSERT<\/span> <span class=\"hljs-keyword\">INTO<\/span> books (title, <span class=\"hljs-keyword\">data<\/span>) \n<span class=\"hljs-keyword\">VALUES<\/span>\n    (<span class=\"hljs-string\">'The Catcher in the Rye'<\/span>, <span class=\"hljs-string\">'{\"isbn\": \"0316769487\", \"author\": {\"name\": \"J.D. Salinger\"}}'<\/span>),\n    (<span class=\"hljs-string\">'To Kill a Mockingbird'<\/span>, <span class=\"hljs-string\">'{\"isbn\": \"0061120081\", \"author\": {\"name\": \"Harper Lee\"}}'<\/span>),\n    (<span class=\"hljs-string\">'1984'<\/span>, <span class=\"hljs-string\">'{\"isbn\": \"0451524934\", \"author\": {\"name\": \"George Orwell\"}}'<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-18\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Third, retrieve data from the <code>books<\/code> table:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-19\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> * <span class=\"hljs-keyword\">FROM<\/span> books;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-19\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-20\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">id  title                   data\n\n<span class=\"hljs-comment\">--  ----------------------  -----------------------------------------------------------<\/span>\n1   The Catcher in the Rye  {\"isbn\": \"0316769487\", \"author\": {\"name\": \"J.D. Salinger\"}}\n2   To <span class=\"hljs-keyword\">Kill<\/span> a Mockingbird   {<span class=\"hljs-string\">\"isbn\"<\/span>: <span class=\"hljs-string\">\"0061120081\"<\/span>, <span class=\"hljs-string\">\"author\"<\/span>: {<span class=\"hljs-string\">\"name\"<\/span>: <span class=\"hljs-string\">\"Harper Lee\"<\/span>}}\n<span class=\"hljs-number\">3<\/span>   <span class=\"hljs-number\">1984<\/span>                    {<span class=\"hljs-string\">\"isbn\"<\/span>: <span class=\"hljs-string\">\"0451524934\"<\/span>, <span class=\"hljs-string\">\"author\"<\/span>: {<span class=\"hljs-string\">\"name\"<\/span>: <span class=\"hljs-string\">\"George Orwell\"<\/span>}}<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-20\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Finally, extract the ISBN and name from the JSON data using the <code>json_extract()<\/code> data:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-21\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span>\n  title,\n  json_extract (<span class=\"hljs-keyword\">data<\/span>, <span class=\"hljs-string\">'$.isbn'<\/span>)   isbn,\n  json_extract (<span class=\"hljs-keyword\">data<\/span>, <span class=\"hljs-string\">'$.author.name'<\/span>) author\n<span class=\"hljs-keyword\">FROM<\/span>\n  books;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-21\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-22\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">title                   isbn        author\n<span class=\"hljs-comment\">----------------------  ----------  -------------<\/span>\nThe Catcher in the Rye  0316769487  J.D. Salinger\nTo <span class=\"hljs-keyword\">Kill<\/span> a Mockingbird   <span class=\"hljs-number\">0061120081<\/span>  Harper Lee\n<span class=\"hljs-number\">1984<\/span>                    <span class=\"hljs-number\">0451524934<\/span>  George Orwell<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-22\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use the <code>json_extract()<\/code> function to extract one or more JSON values from JSON data.<\/li>\n<\/ul>\n<div class=\"helpful-block-content\" data-title=\"\">\n\t<header>\n\t\t<div class=\"wth-question\">Was this tutorial helpful ?<\/div>\n\t\t<div 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