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How to increase storage for Android Emulator? (INSTALL_FAILED_INSUFFICIENT_STORAGE)

...onfigurations". You can find that in the drop-down under the "debug" icon. Select "target", and select a preferred emulator target to launch. Then under "additional emulator command line options," add this: -partition-size 1024 Then CLOSE the emulator (and remove any devices), and click the debug ...
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Random record from MongoDB

...llection. db.mycoll.aggregate([{ $sample: { size: 1 } }]) If you want to select the random document(s) from a filtered subset of the collection, prepend a $match stage to the pipeline: // Get one random document matching {a: 10} from the mycoll collection. db.mycoll.aggregate([ { $match: { a:...
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How to export table as CSV with headings on Postgresql?

... @arilwan psql -c "\COPY (SELECT * FROM mytable) TO STDOUT" > mytable.csv – Juha Palomäki Jun 6 '19 at 16:00 ...
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How to create your own library for Android development to be used in every program you write?

...uide focuses on creating Android libraries. Give your library a name and select a minimum SDK version for the code in the library, then click Finish. Once the Gradle project sync completes, the library module appears in the Project panel on the left. If you don't see the new module fol...
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How to get all options of a select using jQuery?

How can I get all the options of a select through jQuery by passing on its ID? 17 Answers ...
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Tracking CPU and Memory usage per process

...tility to save the performance data for your inspection later. To do this, select "Performance Logs and Alerts" in the left-hand panel. (It's right under the System Monitor console which provides us with the above mentioned counters. If it is not there, click "File" > "Add/remove snap-in", click ...
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Retrieve column names from java.sql.ResultSet

... metadata. See ResultSetMetaData e.g. ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2"); ResultSetMetaData rsmd = rs.getMetaData(); String name = rsmd.getColumnName(1); and you can get the column name from there. If you do select x as y from table then rsmd.getColumnLabel() wi...
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CASCADE DELETE just once

...you want to cascade. DELETE FROM some_child_table WHERE some_fk_field IN (SELECT some_id FROM some_Table); DELETE FROM some_table; share | improve this answer | follow ...
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Professional jQuery based Combobox control? [closed]

... If I already select one value, then click arrow it only show the selected value, not all value. – linbo Oct 10 '12 at 11:55 ...
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How to check if field is null or empty in MySQL?

... Either use SELECT IF(field1 IS NULL or field1 = '', 'empty', field1) as field1 from tablename or SELECT case when field1 IS NULL or field1 = '' then 'empty' else field1 end as field1 from tablename ...