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Email ID. Contact No. Please Google it. From here on out everything you're doing is pretty much wrong. Aside from using an old, dangerous syntax, you mess up the aliases. The product name turn in the product description, aliases were created in the from clause, etc.
I think you're trying to change the product name in the Orders to the product name in the products table. Or was it the product description? Unfortunately, all you've done is de-normalize the schema and increase redundancy.
Please note that the product table has the attributes of a product, they are not split out into other tables. The attempts to update Orders is the way we would have done it in the s on punch cards.
You are repeating the product information over and over and over. You think that you have to physically materialize redundant data. A SQL programmer would've written something like this:.
If you're looking for an example of how to use CTE constructs, there are much better ways of doing it. I have never heard of a "tibble", so I googled it. Not sure how widespread that term is.
WHERE syntax", and had trouble. For example, inserting a row if it doesn't exist, or updating a row if it matches. The term was coined by Phil Factor and it even has a few little poems and songs that use it.
Look at some of his columns over on Redgate. It violates a fundamental design principle, that you do not mix data and metadata. Thanks for reading. Next Recommended Reading. Net Core 6. Create A. Understanding Thread Starvation in.
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