Why do people put where 1 1 in SQL queries?
At first glance, 1 = 1 in SQL seems like a useless trick. But it turns out to be a practical, time-saving technique—especially when building queries dynamically in backend code. It lets you cleanly stack AND conditions without worrying about whether you're adding the first filter or not. Lees verder »
What does WHERE 1 2 mean in SQL?
Putting it all together, when you use SELECT INTO with WHERE 1=2 , you are essentially creating an empty table that has the same structure as the source table but doesn't contain any data. It's a quick way to clone the structure of a table without copying any records. Lees verder »
What is a 1 1 relation in SQL?
One-to-one relationships are frequently used to indicate critical relationships so you can get the data you need to run your business. A one-to-one relationship is a link between the information in two tables, where each record in each table only appears once. Lees verder »
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