关于Google Spanner对SQL-2011及Delete/Insert/Update命令支持的问询

Great questions! Let me break this down clearly for you:

Google Spanner does support most core features of the SQL-2011 standard, though it’s worth noting there are minor differences and limitations. Spanner prioritizes alignment with standard SQL for everyday use cases, while also adding custom extensions tailored to its distributed, globally consistent architecture (like support for interleaved tables or cross-region strong transactions). For more niche or advanced SQL-2011 features, you might encounter gaps, but for nearly all common querying and data manipulation tasks, the SQL-2011 compatibility is robust.

Absolutely—Spanner fully supports all three of these standard DML (Data Manipulation Language) commands. They follow standard SQL syntax closely, so you can use them just like you would in a traditional relational database. Here are practical examples to show how they work:

INSERT Example #

-- Insert one or multiple rows into a table
INSERT INTO Singers (SingerId, FirstName, LastName, BirthDate)
VALUES (1, 'Elena', 'Martinez', DATE '1985-03-12'),
       (2, 'Liam', 'OConnor', DATE '1990-07-22');

UPDATE Example #

-- Update specific rows based on a condition
UPDATE Singers
SET LastName = 'Martinez-Reyes'
WHERE SingerId = 1 AND FirstName = 'Elena';

DELETE Example #

-- Remove rows matching a specified criteria
DELETE FROM Singers
WHERE SingerId = 2 AND BirthDate < DATE '1990-01-01';

You can also use these commands within transactions, pair them with subqueries, or take advantage of Spanner’s advanced tools like partitioned DML for large-scale data operations—all while sticking to standard SQL fundamentals.

内容的提问来源于stack exchange，提问作者James Smith