Database.Guide

Skip to content

Beginners

  • What is a Database?
  • Database Tutorial

SQL

  • SQL Tutorial
  • SQL Reference
  • SQL Joins Tutorial
  • SQL Transactions Tutorial
  • Basic SQL Queries

Categories

  • Azure SQL Edge (17)
  • Database Concepts (99)
  • Database Tools (72)
  • DBMS (9)
  • DuckDB (151)
  • MariaDB (424)
  • Microsoft Access (17)
  • MongoDB (265)
  • MySQL (602)
  • NoSQL (8)
  • Oracle (301)
  • PostgreSQL (480)
  • Redis (210)
  • SQL (697)
  • SQL Server (1,170)
  • SQLite (299)

Tag: json

How to Export Oracle Query Results to a JSON File when using SQLcl

Posted on November 22, 2021 by Ian

When using SQLcl with Oracle Database, you can export your query results to a JSON file with the SPOOL command.

Continue reading →
Oracle export, how to, json, sqlcl

JSON_VALUE() in MySQL

Posted on November 12, 2021 by Ian

In MySQL, the JSON_VALUE() function extracts a value from a JSON document at the specified path.

The function was introduced in MySQL 8.0.21.

Continue reading →
MySQL functions, json, what is

JSON_OBJECTAGG() Function in Oracle

Posted on September 30, 2021 by Ian

In Oracle Database, the JSON_OBJECTAGG() function creates a JSON object from a key-value pair.

Typically, the property key, the property value, or both are columns of SQL expressions.

Continue reading →
Oracle functions, json, what is

JSON_OBJECT() Function in Oracle

Posted on September 29, 2021 by Ian

In Oracle Database, the JSON_OBJECT() function creates a JSON object from a sequence of key-value pairs or one object type instance.

Continue reading →
Oracle functions, json, what is

JSON_ARRAYAGG() Function in Oracle

Posted on September 28, 2021April 28, 2024 by Ian

In Oracle Database, the JSON_ARRAYAGG() function creates a JSON array from a column of SQL expressions.

Continue reading →
Oracle arrays, functions, json, what is

JSON_ARRAY() Function in Oracle

Posted on September 27, 2021April 28, 2024 by Ian

In Oracle Database, the JSON_ARRAY() function creates a JSON array from a sequence of SQL scalar expressions or one collection type instance, VARRAY or NESTED TABLE.

Continue reading →
Oracle arrays, functions, json, what is

JSON_TABLE() Function in Oracle

Posted on September 26, 2021 by Ian

In Oracle Database, the JSON_TABLE() function creates a relational view of JSON data. It allows you to present the values in a JSON document in table format – as rows and columns.

Continue reading →
Oracle functions, json, what is

JSON_VALUE() Function in Oracle

Posted on September 25, 2021 by Ian

In Oracle Database, the JSON_VALUE() function finds a specified scalar JSON value in JSON data and returns it as a SQL value. 

Continue reading →
Oracle functions, json, what is

JSON_QUERY() Function in Oracle

Posted on September 24, 2021 by Ian

In Oracle Database, the JSON_QUERY() function selects and returns one or more values from JSON data and returns those values. 

You can use the function to retrieve fragments of a JSON document.

Continue reading →
Oracle functions, json, what is

MariaDB JSON_VALUE() vs JSON_QUERY(): What’s the Difference?

Posted on August 13, 2021 by Ian

In MariaDB, the JSON_VALUE() function and JSON_QUERY() function do similar things – they return data from a JSON document.

So what’s the difference?

The main difference is that JSON_VALUE() returns scalar values, whereas JSON_QUERY() returns arrays and objects.

Continue reading →
MariaDB functions, json, what is
  • «
  • 1
  • …
  • 5
  • 6
  • 7
  • 8
  • 9
  • …
  • 16
  • »

About Database.Guide | Privacy Policy