大约有 40,000 项符合查询结果(耗时:0.0453秒) [XML]
PostgreSQL delete all content
...omers. When you try to TRUNCATE / DELETE FROM the table that is referenced by other table/s (the other table/s has foreign key constraint to the named table) you get an error. To delete content from all three tables you have to name all these tables (the order is not important)
TRUNCATE customers, ...
Insert, on duplicate update in PostgreSQL?
...
the 'where' part can be simplified by using exists: ... where not exists (select 1 from table where id = 3);
– Endy Tjahjono
Oct 21 '11 at 6:46
...
sqlalchemy unique across multiple columns
...sents locations. Locations "belong" to customers. Locations are identified by a unicode 10 character code. The "location code" should be unique among the locations for a specific customer.
...
MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
as the title says, I want to perform a find (one) for a document, by _id, and if doesn't exist, have it created, then whether it was found or was created, have it returned in the callback.
...
When to use EntityManager.find() vs EntityManager.getReference() with JPA
...Ronald what happens if there is a Version annotation in the entity called by getReference?
– David Hofmann
Mar 25 '16 at 13:28
...
Move to another EditText when Soft Keyboard Next is clicked on Android
...ior of the developer.
Change default behaviour of directional navigation by using following XML attributes:
android:nextFocusDown="@+id/.."
android:nextFocusLeft="@+id/.."
android:nextFocusRight="@+id/.."
android:nextFocusUp="@+id/.."
Besides directional navigation you can use tab n...
mongodb/mongoose findMany - find all documents with IDs listed in array
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How do I get the resource id of an image if I know its name?
...
it means i confused by resources in the code and i use it in non activity class
– Milaaaad
Jan 19 '16 at 7:07
1
...
GCM with PHP (Google Cloud Messaging)
...
Hi Shailesh Giri, its working fine by using Browser key,but in case of Server key, it shows Unauthorized Error 401. Can you help me please.
– Sushil Kandola
Sep 27 '12 at 10:31
...
How to adjust layout when soft keyboard appears
... give some margin to footer so that layout looks good. I made some changes by giving layout_margin attribute to relative layout of the footer but with this it is covering last half of the Edit Text. Plz help me out.
– Tara
May 11 '16 at 12:27
...
