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How can you represent inheritance in a database?

... Does other DBs support INHERITS besides PostgreSQL ? MySQL for example ? – giannis christofakis Mar 11 '16 at 9:00 1 ...
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zsh compinit: insecure directories

...u may need to update the owner of site-functions as well: $ sudo chown -R root:root ./site-functions On my machine (OSX 10.9), I do not need to do this but YMMV. EDIT2: On OSX 10.11, only this worked: $ cd /usr/local/share/ $ sudo chmod -R 755 zsh $ sudo chown -R root:staff zsh Also user:staf...
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PHP PDO returning single row

... how about using limit 0,1 for mysql optimisation and about your code: $DBH = new PDO( "connection string goes here" ); $STH - $DBH -> prepare( "select figure from table1" ); $STH -> execute(); $result = $STH ->fetch(PDO::FETCH_ASSOC) echo ...
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Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”

...hm options and ENGINE provided algorithms can be used.. But some software (mysql) can use only PKCS#1 keys. Converting from PKCS#8 to PKCS#1 can be done with openssl rsa -in key.pem -out key.pem. Converting the other way can be done with openssl pkey -in key.pem -out key.pem. –...
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What is a stored procedure?

... For more detail about stored procedure you can refer my URL techflirt.com/mysql-stored-procedure-tutorial – Ankur Kumar Singh Mar 4 '18 at 5:25 add a comment ...
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Ukkonen's suffix tree algorithm in plain English

...ts. What we are building, is basically like a search trie. So there is a root node, edges going out of it leading to new nodes, and further edges going out of those, and so forth But: Unlike in a search trie, the edge labels are not single characters. Instead, each edge is labeled using a pair of ...
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Using SSH keys inside docker container

...sh-server \ libmysqlclient-dev # Authorize SSH Host RUN mkdir -p /root/.ssh && \ chmod 0700 /root/.ssh && \ ssh-keyscan github.com > /root/.ssh/known_hosts # Add the keys and set permissions RUN echo "$ssh_prv_key" > /root/.ssh/id_rsa && \ echo "$s...
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What should be in my .gitignore for an Android Studio project?

...uction *.iws *.ipr *~ *.swp This file should be located in the project's root folder and not inside the project's module folder. Edit Notes: Since version 0.3+ it seems you can commit and push *.iml and build.gradle files. If your project is based on Gradle: in the new open/import dialog, you s...
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Difference between natural join and inner join

... definition of a natural join is to join on *all like-named columns*. From MySQL doc: The NATURAL [LEFT] JOIN of two tables is defined to be semantically equivalent to an INNER JOIN or a LEFT JOIN with a USING clause that names all columns that exist in both tables.. And another thing - in practice ...
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how to check if a file is a directory or regular file in python? [duplicate]

...def walktree(top, callback): '''recursively descend the directory tree rooted at top, calling the callback function for each regular file''' for f in os.listdir(top): pathname = os.path.join(top, f) mode = os.stat(pathname)[ST_MODE] if S_ISDIR(mode): ...