sql - How to do a Select in a Select - Stack Overflow
Apr 17, 2009 · I have a table containing a unique ID field. Another field (REF) contains a reference to another dataset's ID field. Now I have to select all datasets where REF points to a …
sql - MySQL SELECT only not null values - Stack Overflow
Is it possible to do a select statement that takes only NOT NULL values? Right now I am using this: SELECT * FROM table And then I have to filter out the null values with a php loop. Is …
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 - Case in Select Statement - Stack Overflow
Jan 7, 2013 · I have an SQL statement that has a CASE from SELECT and I just can't get it right. Can you guys show me an example of CASE where the cases are the conditions and the …
Understanding SQL Server LOCKS on SELECT queries
I'm wondering what is the benefit to use SELECT WITH (NOLOCK) on a table if the only other queries affecting that table are SELECT queries. How is that handled by SQL Server? Would 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.
How to select data of a table from another database in SQL Server?
Suppose that I have a database which name is testdb in test server. I also have a database named proddb in prod server. Now I want to select data of a table of testdb database from …
sql - How to rename columns with `SELECT`? - Stack Overflow
Mar 5, 2009 · I have two tables with one identical column name, but different data. I want to join the tables, but access both columns (row["price"], row["other_price"]): How can I rename/alias …
How to create a new column in a select query - Stack Overflow
Mar 3, 2015 · In MS Access, I want to insert a new column into the returned result of a select query. The new column has the same value for every row. For example, my select returns …
How can I set the default value for an HTML <select> element?
Aug 19, 2010 · The function first tries to find the <select> with the id, then it will search for the value_selected in the <select> options and if it finds it, it will set the selected attribute returning …