One option is to put the subquery in a LEFT JOIN: Perhaps a better option would be to use SUM with CASE: SQL Fiddle Demo with both
Let’s say for instance you want to get a list of all your customers: And let’s assume that each Customer object has a reference to its set of Orders, and that each Order has references to LineItems which may also reference a Product. As you can see, selecting a top-level object with many related entities … Read more
You could use NOT IN
Add a WHERE clause
You are dropping it, then creating it, then trying to create it again by using SELECT INTO. Change to: In MS SQL Server you can create a table without a CREATE TABLE statement by using SELECT INTO
You need to remove shares as your PRIMARY KEY OR UNIQUE_KEY
Postgres allows: This syntax is not standard SQL, but it is much more convenient for this type of query than standard SQL. I believe Oracle (at least) accepts something similar.
Taken from the MySQL manual (13.2.10.11 Rewriting Subqueries as Joins): A LEFT [OUTER] JOIN can be faster than an equivalent subquery because the server might be able to optimize it better—a fact that is not specific to MySQL Server alone. So subqueries can be slower than LEFT [OUTER] JOIN, but in my opinion their strength … Read more
OK. I finally created a view that works: Thanks to AdaTheDev and CodeByMoonlight. I used your two answers to get to this. (Thanks to the other repliers too of course) Now when I do joins with other bigint cols or do something like ‘SELECT * FROM MyView where mycol=1’ it returns the correct result with … Read more
There are many ways you can take back of table. BCP (BULK COPY PROGRAM) Generate Table Script with data Make a copy of table using SELECT INTO, example here SAVE Table Data Directly in a Flat file Export Data using SSIS to any destination