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 …

2009年4月17日 · 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 …

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</...

2019年3月6日 · 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 - …

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 …

2013年1月7日 · 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 …

2024年6月13日 · 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.

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

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.

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 …