![]() To retrieve data from a sample table named productorderdetails. To do this, we can use the HAVING clause: SELECT JSON_UNQUOTE ( JSON_EXTRACT ( data, '$. Postgres supports a couple of native JSON operators to query the data from a JSON. You can also provide a second (optional) argument to specify the object or array to extract. To use this function, you provide the JSON expression as an argument. With JSONata you can do that by referencing the appropriate property name. It is common to use the selected JSON field as a condition. When using JSON with SQL Server, you can use the JSONQUERY() function to extract an object or an array from a JSON string. Sometimes all you want to do is grab one piece of data out of a JSON object. This will output: 921213 #Use the selected field as a condition To use dot notation in the selection path, we can wrap it with double quotes: SELECT JSON_UNQUOTE ( JSON_EXTRACT ( data, '$."mobile_no."' )) AS mobile FROM users ![]() Specify AND as well as OR Conditions Additional Query Tutorials Behavior. You cannot use the dot notation directly in the selection field, because it will be treated as a denominator. How do I query documents, query top level fields, perform equality match. In our sample data, it contains a JSON field called "mobile_no.", pay attention to the ending dot notation. This will output Betty #Use dot notation in the selection path To remove the double quotes from the selection result, we can use JSON_UNQUOTE function: SELECT JSON_UNQUOTE ( JSON_EXTRACT ( data, '$.name' )) AS name FROM users You may have noticed double quotes in the previous sample. This will output "Betty" #Remove double quotes from selection result For example, to select the name field: SELECT JSON_EXTRACT ( data, '$.name' ) AS name FROM users ![]() To select a particular field from JSON, we can use the JSON_EXTRACT function. It currently holds a user JSON data with three fields: #Sample dataįor demonstration purpose, suppose we have created a database table with the following data: +-+ | data | +-+ | | +-+ In this tutorial, we will learn how to search for JSON data in MySQL.
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