Imitating the “IN” Operator

I don’t think there is a very elegant solution. However, you could try: If Not IsError(Application.Match(x, Array(“Me”, “You”, “Dog”, “Boo”), False)) Then or you could write your own function: Function ISIN(x, StringSetElementsAsArray) ISIN = InStr(1, Join(StringSetElementsAsArray, Chr(0)), _ x, vbTextCompare) > 0 End Function Sub testIt() Dim x As String x = “Dog” MsgBox ISIN(x, … Read more

How to use php array with sql IN operator? [duplicate]

Since you have plain integers, you can simply join them with commas: $sql = “SELECT * FROM table WHERE comp_id IN (” . implode(‘,’, $arr) . “)”; If working with with strings, particularly untrusted input: $sql = “SELECT * FROM table WHERE comp_id IN (‘” . implode(“‘,'”, array_map(‘mysql_real_escape_string’, $arr)) . “‘)”; Note this does not … Read more

Performance differences between equal (=) and IN with one literal value

There is no difference between those two statements, and the optimiser will transform the IN to the = when IN has just one element in it. Though when you have a question like this, just run both statements, run their execution plan and see the differences. Here – you won’t find any. After a big … Read more

Is there a C# IN operator?

If you wanted to write .In then you could create an extension that allows you to do that. static class Extensions { public static bool In<T>(this T item, params T[] items) { if (items == null) throw new ArgumentNullException(“items”); return items.Contains(item); } } class Program { static void Main() { int myValue = 1; if … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)