What's the best SQL datatype for storing JSON string?
For efficient storage and querying of JSON strings, use the native JSON data type, if your SQL Database supports it. If JSON is unavailable, consider NVARCHAR(MAX) for unlimited JSON size, or VARCHAR for smaller records.
PostgreSQL:
MySQL:
SQL Server:
Your choice should depend on the features of your database and size of your JSON data.
Victorious NVARCHAR(MAX) for JSON storage
When a specific JSON datatype disappears like a ghost in a SQL database, the champion backup is NVARCHAR(MAX). This warrior offers:
- Super storage—Eats large JSON payloads for breakfast.
- Multi-language friendliness—Chatting in unicode characters for global citizens.
- Adaptability in terrain—Manipulating JSON functions like it's a morning jog.
Steer clear of TEXT, NTEXT, or IMAGE, old and decrepit warriors past their prime. Also, avoid VARBINARY(MAX) - it's like bringing a knife to a gun fight for JSON battles.
Weaving JSON with SQL
SQL Server's JSON support
If you're living in the world of SQL Server 2016 and above, you can show your JSON data some extra love:
- Storing JSON with elegance using
NVARCHAR(MAX). - Indexing your JSON's properties - a boost for performance with super shoes!
- Querying with JSON functions - getting and modifying data has never been easier!
Compress for success
Dealing with JSON data that's as large as an army? Consider COMPRESS with VARBINARY(MAX) when you don't need all those native JSON features. It's like moving from a mansion to a cozy apartment!
It’s all about the performance
Choosing the home for your JSON data? Consider storage size, performance, and query flexibility. While Vader's indexing force can help in speeding up queries, it comes with the dark side of increased space usage. Compression can be your lightsaber in slashing space, but beware the possible slowing of speed!
Balance, as all things should be
Keep up with the times
In this world of SQL data, it's critical to stay updated with the latest SQL Server features. As new features are introduced, the balance of power may shift.
Size does matter
The home for your JSON data should be chosen wisely considering the data size and index requirements. Smaller data that doesn’t need indexes may be comfortable in a VARCHAR house. But for larger, more needy data, the mansion of NVARCHAR(MAX) or native JSON types is more appropriate.
Azure’s silver lining
As a SQL Azure user, you get some bonuses - native JSON support that is just as good as SQL Server's! Now you can effectively store and manipulate JSON data. It's like SQL Server, but with a view of the cloud!
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