Apr 17, 2009 · SELECT * FROM YourTable y WHERE NOT EXISTS (SELECT * FROM OtherTable o WHERE y.Ref = o.Ref) SELECT * FROM YourTable WHERE Ref NOT IN …

SELECT * FROM ( SELECT col1 AS col FROM yourtable UNION SELECT col2 AS col FROM yourtable UNION -- ... UNION SELECT coln AS col FROM yourtable ) T1 WHERE col IS NOT …

Feb 26, 2019 · 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 if …

SELECT * FROM employees e WHERE NOT EXISTS ( SELECT null FROM eotm_dyn d WHERE d.employeeID = e.id ) You can join these tables with a LEFT JOIN keyword and filter out the …

Select column is more performatic of select *, but if you is developing an oriented object system, then you will like use object.properties and you can need a properties in any part of apps, then …

Dec 20, 2017 · To build upon Jasneet's answer: Style the background of a disabled option as gray (Jasneet); Add disabled options above and below to pad the separator

Aug 19, 2010 · Learn how to set the default value for an HTML <select> element using JavaScript or HTML techniques.

Using Microsoft SQL Server Management Studio you can create Linked Server.First make connection to current (local) server, then go to Server Objects > Linked Servers > context …

Think of it as the difference between a requirement and a suggestion. For the select element, the user is required to select one of the options you've given. For the datalist element, it is …

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 …