In MariaDB, JSON_REMOVE() is a built-in function that removes data from a JSON document and returns the result.
Author: Ian
How to Install Oracle on a Mac
Here’s a quick and easy way to install Oracle Database on a Mac.
First up, Oracle isn’t available natively on the Mac. But don’t let that stop you!
If you’re a developer, and you just want to have Oracle Database running on your local machine, there are ways to do it. In fact, Oracle provides us with a virtual appliance precisely for that purpose.
Continue readingHow to Install SQL Developer on a Mac
SQL Developer is a GUI tool for working with Oracle Database. It’s available on many major operating systems, including Window, Linux, and of course, MacOS.
Here’s a quick rundown on the steps I took to install SQL Developer on a Mac.
Continue readingHow to Install SQLcl on a Mac
SQLcl is a command line tool for working with Oracle Database. It’s available on many major operating systems, including MacOS.
Here’s a quick rundown on the steps I used to install SQLcl on a Mac.
Continue readingFix ‘The application “SQLDeveloper.app” can’t be opened.’
If you just installed SQL Developer on a Mac, but you’re getting an error when trying to launch it, try the steps below to fix it.
The error reads “The application “SQLDeveloper.app” can’t be opened because Apple cannot check it for malicious software“. It also mentions that “This software needs to be updated. Contact the developer for more information“.
Below are the steps I used to overcome this issue, and launch SQL Developer.
Continue readingMariaDB JSON_QUOTE() Explained
In MariaDB, JSON_QUOTE() is a built-in function that produces a valid JSON string literal that can be included in a JSON document.
It wraps the string with double quote characters and escapes interior quotes and other special characters, returning a utf8mb4 string.
Continue readingMariaDB JSON_LOOSE() Explained
In MariaDB, JSON_LOOSE() is a built-in function that adds spaces to a JSON document to make it more readable.
It’s similar to the JSON_DETAILED() function, except that it doesn’t emphasise nested structures in the way that JSON_DETAILED() does.
For the opposite effect (i.e. to remove unnecessary spaces), use the JSON_COMPACT() function.
How to do a DELETE Pass-Through Query in SQL Server
In SQL Server, the OPENQUERY rowset function enables you to execute a pass-through query on a linked server.
OPENQUERY is commonly referenced in the FROM clause of a query as if it were a table, but it can also be referenced as the target table of an INSERT, UPDATE, or DELETE statement.
This article presents an example of using OPENQUERY to do an DELETE pass-through query.
MariaDB JSON_LENGTH() Explained
In MariaDB, JSON_LENGTH() is a built-in function that returns the length of a JSON document.
When you call this function, you provide the JSON document as an argument. You can also provide a path argument to return the length of a value within the document.
Continue readingMariaDB JSON_KEYS() Explained
In MariaDB, JSON_KEYS() is a built-in function that returns an array of the top-level keys from a JSON document. If a path is provided, it returns the top-level keys from that path.
It excludes keys from nested sub-objects in the specified level.
Also, if the selected object is empty, an empty array is returned.
Continue reading