Consider the following example, which gives us the record whose branch is Computer by using the following statement. In order to filter rows from the result set, we can use the JSON operators in the WHERE clause. Stud_data -> 'information' -> 'rank' as rankĮxample #4 – Use JSON operator in WHERE clause Example #1 – Get all students in the form of JSON keyĮxample #2 – Get all students in the form of JSON textĮxample #3 – Get specific JSON node using operators We have created a student table in the above section let’s use the same for understanding the following examples. We can fetch the data from the student table by using the following snapshot and SQL statements. We can insert multiple rows in the table using the following INSERT statement: Let’s create the table by using the CREATE TABLE statement:Īfter executing the above statement, illustrate the student table’s content using the following snapshot and SQL statement.
stud_data: The column which stores the information of the student in the form of JSON.stud_id: The column is the primary key column that uniquely identifies the student.The student table consists of two columns: In order to understand the insertion of JSON data, let us create a ‘student’ table with the following structure. The -> operator: Returns JSON data in the form of text.The -> operator Returns JSON data in the form of a key.PostgreSQL provides the two native operators to work with JSON data.If JSON data is incorrect, then it will throw an error.We need to make sure the given data is in a valid JSON format before adding it to the table.Hadoop, Data Science, Statistics & othersĮxplanation: The name of the column whose data type will be JSON.
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