大约有 43,000 项符合查询结果（耗时：0.0270秒） [XML]
SQLite UPSERT / UPDATE OR INSERT
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Why can't I use this on android? I tried db.execSQL("insert into bla(id,name) values (?,?) on conflict(id) do update set name=?"). Gives me a syntax error on the word "on"
– Bastian Voigt
Nov 23 '18 at 6:25
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Get current AUTO_INCREMENT value for any table
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Is there a reason you can't SELECT MAX(id) FROM table_name?
– Brian
Apr 8 '15 at 23:53
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How to pass table value parameters to stored procedure from .net code
... to a stored proc as an nvarchar (separated by commas) and internally divide into single values. I add it to the SQL command parameters list like this:
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How to detect if a stored procedure already exists
... After that, you can ALTER the stored procedure to your liking.
IF object_id('YourSp') IS NULL
EXEC ('create procedure dbo.YourSp as select 1')
GO
ALTER PROCEDURE dbo.YourSp
AS
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This way, security settings, comments and other meta deta will survive the deployment.
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Can I set enum start value in Java?
...re like classes - and they can even have multiple attributes.
public enum Ids {
OPEN(100), CLOSE(200);
private final int id;
Ids(int id) { this.id = id; }
public int getValue() { return id; }
}
The big difference is that they are type-safe which means you don't have to worry abou...
mongo group query how to keep fields
... group, you can try aggregating like:
db.test.aggregate({
$group: {
_id : '$name',
name : { $first: '$name' },
age : { $first: '$age' },
sex : { $first: '$sex' },
province : { $first: '$province' },
city : { $first: '$city' },
area : { $first: '$area' },
address : { $first...
Get real path from URI, Android KitKat new storage access framework [duplicate]
Before the new gallery access in Android 4.4 (KitKat) I got my real path on the SD card with this method:
9 Answers
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An App ID with Identifier '' is not available. Please enter a different string
I am trying to add a new APP ID to prepare for App Store submission and got the following error under the bundle ID I provided.
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On delete cascade with doctrine2
...e to the foreign key column in the database:
@ORM\JoinColumn(name="father_id", referencedColumnName="id", onDelete="CASCADE")
I also want to point out that the way you have your cascade={"remove"} right now, if you delete a Child object, this cascade will remove the Parent object. Clearly not wha...
Get element inside element by class and ID - JavaScript
...ll, first you need to select the elements with a function like getElementById.
var targetDiv = document.getElementById("foo").getElementsByClassName("bar")[0];
getElementById only returns one node, but getElementsByClassName returns a node list. Since there is only one element with that class na...