大约有 13,700 项符合查询结果(耗时:0.0289秒) [XML]
How to prepend a string to a column value in MySQL?
...
update TICKET set status_details = CONCAT(status _details,'abc') where ticket_id=75108; ERROR 1583 (42000): Incorrect parameters in the call to native function 'CONCAT'
– nirmesh khandelwal
Jul 1 '13 at 13:45
...
Indenting #defines
...#" and the identifier) you prefer.
http://www.delorie.com/gnu/docs/gcc/cpp_48.html
share
|
improve this answer
|
follow
|
...
What is the best IDE to develop Android apps in? [closed]
... "Why doesn't Android see that View as a TextView? What? I renamed textview_results as textview_results_2 and it worked all of the sudden?"
– Joe Plante
Sep 26 '14 at 16:32
ad...
Java and SQLite [closed]
...zentus)
Another Java - SWIG wrapper. It only works on Win32. http://rodolfo_3.tripod.com/index.html
sqlite-java-shell: 100% pure Java port of the sqlite3 commandline shell built with NestedVM. (This is not a JDBC driver).
SQLite JDBC Driver for Mysaifu JVM: SQLite JDBC Driver for Mysaifu JVM and SQL...
Convert SQLITE SQL dump file to POSTGRESQL
...made constraint such as this:
CREATE TABLE tablename (
...
unsigned_column_name integer CHECK (unsigned_column_name > 0)
);
While SQLite defaults null values to '', PostgreSQL requires them to be set as NULL.
The syntax in the SQLite dump file appears to be mostly compatible with Postgre...
How to define an enumerated type (enum) in C?
...one like this:
enum strategy {RANDOM, IMMEDIATE, SEARCH};
enum strategy my_strategy = IMMEDIATE;
However, you can use a typedef to shorten the variable declarations, like so:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strategy;
strategy my_strategy = IMMEDIATE;
Having a naming convention to dist...
install / uninstall APKs programmatically (PackageManager vs Intents)
...dManifest.xml
<uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
Then:
Intent intent = new Intent(Intent.ACTION_DELETE);
intent.setData(Uri.parse("package:com.example.mypackage"));
startActivity(intent);
to uninstall. Seems easier...
...
How to ignore xargs commands if stdin input is empty?
... -L <#lines>, -n <#args>, -i, and -I <string>:
ls /empty_dir/ | xargs -n10 chown root # chown executed every 10 args or fewer
ls /empty_dir/ | xargs -L10 chown root # chown executed every 10 lines or fewer
ls /empty_dir/ | xargs -i cp {} {}.bak # every {} is replaced with the args...
The best way to remove duplicate values from NSMutableArray in Objective-C?
... edited May 14 '13 at 8:53
DD_
6,5791111 gold badges3535 silver badges6060 bronze badges
answered May 14 '13 at 8:35
...
Scale image to fit a bounding box
...
Test it here: http://www.w3schools.com/cssref/playit.asp?filename=playcss_background-size&preval=contain
Full compatibility with latest browsers: http://caniuse.com/background-img-opts
To align the div in the center, you can use this variation:
.bounding-box {
background-image: url(...);
...
