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 …

I have an input form that lets me select from multiple options, and do something when the user changes the selection. Eg, <select onChange="javascript:doSomething ();"> <option>A</...

This Stack Overflow thread discusses the possibility of adding an option separator for select elements in HTML and provides insights from developers.

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 …

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.

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.

When I perform SELECT * FROM table I got results like below: 1 item1 data1 2 item1 data2 3 item2 data3 4 item3 data4 As you can see, there are dup records from column2 (item1 are …

2013年10月12日 · How can I change an HTML <select> 's option with JavaScript (without any libraries like jQuery), while triggering the same events as if a user had made the change? For …

2015年3月3日 · 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 …

2010年8月19日 · Learn how to set the default value for an HTML <select> element using JavaScript or HTML techniques.