How-To Geek on MSN
The 5 levels of Excel users: Which one are you?
What starts as simple number tracking gradually becomes a journey into logic, visualization, automation, and data ...
IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = 'posts' AND column_name = 'views_count') THEN ALTER TABLE posts ADD COLUMN views_count INTEGER DEFAULT 0 NOT NULL; IF NOT ...
-- Products table - allow NULL for columns that have null values in source data ALTER TABLE public.products ALTER COLUMN care DROP NOT NULL; ALTER TABLE public.products ALTER COLUMN category_id DROP ...
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