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M9 1a8 8 0 1 0 0 16A8 8 0 0 0 9 1zM8 15. How do I get a result set from products that include the agents name and email, meaning that products. Thank You for your fast answers, but I forgot WHERE. 1 there must be a million tutorials on the web for this.
You can use the INNER JOIN clause to join those tables. Note in the second case you are making a natural product of all rows from both tables and then filtering the result. In the first case you are directly filtering the result while joining in the same step. And it works like a charm. INNER JOIN format makes it much easier to separate join criteria from filter criteria, making the query easier to parse for others.
AS agentname email FROM products INNER JOIN agent ON products. I recommend reviewing basic JOIN syntax and concepts. Here’s a link to Microsoft’s documentation, though what you have above is pretty universal as standard SQL. Note that the INNER JOIN here assumes every product has an associated agentid that isn’t NULL.
If there are NULL agentid in products, use LEFT OUTER JOIN instead to return even the products with no agent. I noticed you changed your answer from JOIN to INNER JOIN, can you very briefly explain why? The INNER JOIN only returns rows that have matching values from both tables. The INNER keyword is optional for an inner join.
I prefer to include it just to be explicit and make the code that much more self-documenting. In a complex query with both inner and outer joins, being explicit keeps all join types more visible. This is my join for slightly larger tables in Prod. Not the answer you’re looking for? 127-1 an interesting problem for “Baby”? How to limit the impact of and reduce the risk of SQL injection for existing website?
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