What does it mean `SELECT 1 FROM table`? - Stack Overflow
select 1 from table will return the constant 1 for every row of the table. It's useful when you want to cheaply determine if record matches your where clause and/or join.
sql - The difference between SELECT - Stack Overflow
I am new to SQL can someone help me understand why do we use Select .* in sql server ? And why is it different from just select * from table name In some cases we use statements like …
Is there an onSelect event or equivalent for HTML <select>?
Another option could be to use onblur on the select. This will fire anytime the user clicks away from the select. At this point you could determine what option was selected. To have this even …
sql server - SQL select from a select query - Stack Overflow
I want to do a select request that perform a first select and then use that selection to perform a second select. I made a 1st version using a temp table but I would like to know - is there is a wa...
sql - Case in Select Statement - Stack Overflow
Jan 7, 2013 · Using a SELECT statement with a searched CASE expression Within a SELECT statement, the searched CASE expression allows for values to be replaced in the result set …
python - How select.select() works? - Stack Overflow
Jul 21, 2012 · Python's select() gets passed through as a select() system call as you are expecting, but the problem you have with it blocking is a different issue, probably relating to …
How can I set the default value for an HTML <select> element?
Aug 19, 2010 · Learn how to set the default value for an HTML <select> element using JavaScript or HTML techniques.
sql - Select * from subquery - Stack Overflow
Jan 18, 2012 · You can select every column from that sub-query by aliasing it and adding the alias before the *: SELECT t.*, a+b AS total_sum FROM ( SELECT SUM(column1) AS a, …
sql server - INSERT INTO vs SELECT INTO - Stack Overflow
The simple difference between select Into and Insert Into is: --> Select Into don't need existing table. If you want to copy table A data, you just type Select * INTO [tablename] from A.
What does SQL Select symbol || mean? - Stack Overflow
Apr 29, 2014 · What does SQL Select symbol || mean? Asked 11 years, 6 months ago Modified 10 months ago Viewed 187k times