大约有 13,700 项符合查询结果(耗时:0.0289秒) [XML]

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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 ...
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Indenting #defines

...#" and the identifier) you prefer. http://www.delorie.com/gnu/docs/gcc/cpp_48.html share | improve this answer | follow | ...
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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...
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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...
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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...
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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...
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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... ...
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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...
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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 ...
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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(...); ...