exists

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External App: Check if an Outlook Folder exists

SOLUTION BELOW I\'ve been looking all over the net to find a solution for this, but it seems quite hard to get an answer for this in Delphi...[详细]

2023-01-16 07:37 分类：问答
INSERT IF NOT EXISTS ELSE UPDATE?

I\'ve found a few \"would be\" solutions for the classic \"How do I insert a new record or update one if it already exists\" but I cannot get any of them to work in SQLite.[详细]

2023-01-14 21:56 分类：问答
Check if xml node exists in PHP [duplicate]

This question already has answers here: php SimpleXML check if a child exists (17 answers) Closed 8 years ago.[详细]

2023-01-14 06:55 分类：问答
how to check if a URL exists or not - error 404 ? (using php)

how t开发者_JAVA技巧o check if a URL exists or not - error 404 ? (using php) <?php $url = \"http://www.faressoft.org/\";[详细]

2023-01-13 13:31 分类：问答
How to formulate T-SQL to exclude duplicates?

I am trying to develop a query to just return non-duplicate records so that I can add these to my database, but I keep getting the duplicate record error.[详细]

2023-01-13 07:18 分类：问答
SQL-Query: EXISTS in Subtable

I have two tables tabData and tabDataDetail. I want all idData(PK) from Parent-Table(tabData) that have only rows in Child-Table(tabDataDetail, FK is fiData) with:[详细]

2023-01-10 22:39 分类：问答
Magento: addAttributeToFilter but ignore for products that don't have this attribute?

I\'m trying to show add some filters on my store, but they have a nasty side effect. Suppose I have product type A and B. Now I want to only show A where color = blue/red.[详细]

2023-01-09 23:08 分类：问答
Conditionally insert a row

I\'d like to insert a row into开发者_如何学编程 table A, but only if another row in table B exists. For example something like this...[详细]

2023-01-08 05:15 分类：问答
detect if contact has photo

I\'ve got an ImageView which I\'m displaying a contacts picture using a Uri which always looks similar to this:[详细]

2023-01-07 21:04 分类：问答
In Linq, how to find if a set contains an element without using Count(predicate)?

Since IEnumerable.Contains() method does not accept a predicate as an argument, Most people use the following code to check the existence of something matching a condition:[详细]

2023-01-07 16:44 分类：问答