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Remove multiple keys from Map in efficient way?
...ng,String> with large number of key values pairs. Now I want to remove selected keys from that Map . Following code shows what I did to achieve that.
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How can I get the latest JRE / JDK as a zip file rather than EXE or MSI installer? [closed]
...mp; drop jdk1.6.0_31.msi or jre1.6.0_31.msi on the icon of UniExtract.exe.
Select "Extract Method: MSI Administrative Installer". Wait for the process to finish.
Enter the new created folder.
If you've drag-and-dropped jre1.6.0_31.msi you should have a jre1.6.0_31 folder
Follow all levels inside an...
How do I create multiple submit buttons for the same form in Rails?
...an change the behavior of hte controller,e ven if it user input, which the selection of the button is?
– Timothy T.
Jun 12 '10 at 6:07
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How can I copy & paste, or duplicate, an existing project?
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Click on "new job" and then select "Copy existing job" at the bottom. Then enter the name of the job you want to copy into the text field.
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Hibernate - Batch update returned unexpected row count from update: 0 actual row count: 0 expected:
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The solution is to use select for update when fetching the record to lock the row, so nothing else can delete it before you do.
– Matthew Read
May 19 '19 at 15:02
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mysql_config not found when installing mysqldb python interface
...one Building dependency tree Reading state information...Done Note, selecting libmysqlclient15-dev instead of libmysqlclient-dev Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required...
WebRTC - scalable live stream broadcasting / multicasting
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You're actually explaining how an SFU (Selective Forwarding Unit) works. You can do the same with mediasoup
– Dirk V
Jun 17 at 13:16
add a ...
How to get execution time in rails console?
I want compare time of execution Post.all and SELECT * FROM posts (or some other statements) How can i get execution time of Post.all ?
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Using Git with an existing Xcode project
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After this restart the Xcode and choose Source Control Navigator and then select the master and right click then choose option "Create Remote"
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How to solve privileges issues when restore PostgreSQL Database
...t = 0;
SET client_encoding = 'UTF8';
SET standard_conforming_strings = on;
SELECT pg_catalog.set_config('search_path', '', false);
SET check_function_bodies = false;
SET client_min_messages = warning;
SET row_security = off;
--
-- Name: EXTENSION plpgsql; Type: COMMENT; Schema: -; Owner:
--
COMME...