大约有 32,000 项符合查询结果(耗时:0.0319秒) [XML]

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How to delete or add column in SQLITE?

...upports a limited subset of ALTER TABLE. The ALTER TABLE command in SQLite allows the user to rename a table or to add a new column to an existing table. It is not possible to rename a column, remove a column, or add or remove constraints from a table. You can: create new table as the one you ar...
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psql: FATAL: Ident authentication failed for user “postgres”

I have installed PostgreSQL and pgAdminIII on my Ubuntu Karmic box. 23 Answers 23 ...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

...CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost' -> WITH GRANT OPTION; mysql> CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%' -> WITH GRANT OPTION; ...
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Android get free size of internal/external memory

... size of free memory on internal/external storage of my device programmatically. I'm using this piece of code : 12 Answers ...
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How to urlencode a querystring in Python?

... Technically, that's a bug in the services, isn't it? – holdenweb Aug 19 '15 at 9:52 6 ...
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Sign APK without putting keystore info in build.gradle

...yPassword=... keyAlias=... storeFile=... Add this to your build.gradle: allprojects { afterEvaluate { project -> def propsFile = rootProject.file('keystore.properties') def configName = 'release' if (propsFile.exists() && android.signingConfigs.hasProperty(...
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How do I get the type of a variable?

... I totally disagree. Java, C#, PHP, Perl, Python and so on were designed in C and C++ and they are not caterpillars. (When you create an database application to open variable tables from 'unknown' databases you need to control fiel...
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How do I find a “gap” in running counter with SQL?

...en this would find only 3. What I'd love it to find is 3-10 instead - basically the beginning and the end of every gap. I understand that I might have to write my own python script that leverages SQL (in my case MySql), but it would be nice if SQL could get me closer to what I want (I have a table w...
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“Conversion to Dalvik format failed with error 1” on external JAR

... Go to Project » Properties » Java Build Path » Libraries and remove all except the "Android X.Y" (in my case Android 1.5). click OK. Go to Project » Clean » Clean projects selected below » select your project and click OK. That should work. It is also possible that you have a JAR file loc...
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Ubuntu says “bash: ./program Permission denied” [closed]

...s to allow execution. However, copying the file to a local volume may be a quicker and easier solution. share | improve this answer | follow | ...