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How to create a MySQL hierarchical recursive query

...abase and no doubt learned that the management of hierarchical data is not what a relational database is intended for. The tables of a relational database are not hierarchical (like XML), but are simply a flat list. Hierarchical data has a parent-child relationship that is not naturally represented ...
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How do I get the directory that a program is running from?

... Good answer, but I thought "current working directory" was not what was wanted. – Michael Burr Sep 30 '08 at 21:44 4 ...
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How do I select the “last child” with a specific class name in CSS? [duplicate]

...when I initially tried your code in jsfiddle, l thought "how is this doing what the OP asked for" until I understood what you meant with the 'last' class. – neodymium Apr 24 '15 at 4:29 ...
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How to fix the Hibernate “object references an unsaved transient instance - save the transient insta

... What if I don't want to cascade saves on a @OneToOne relationship? When creating both objects for the first time, how can I save either to the database without triggering the exception? – xtian ...
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launch sms application with an intent

... I tried, but when I write exactly what you give, eclipse console return (when compiling) "No Launcher activity found!" – Olivier69 Mar 3 '10 at 16:07 ...
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How do you create a Swift Date object?

...he date. The Calendar gives the Date context. Otherwise, how would it know what time zone or calendar to express it in? // Specify date components var dateComponents = DateComponents() dateComponents.year = 1980 dateComponents.month = 7 dateComponents.day = 11 dateComponents.timeZone = TimeZone(abbr...
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What's a correct and good way to implement __hash__()?

What's a correct and good way to implement __hash__() ? 6 Answers 6 ...
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What is the difference between DSA and RSA?

... x compute y = g power x(mod p) DSA key generation is related to, but somewhat more complex than El Gamal. Mostly because of the use of the secondary 160-bit modulus q used to help speed up calculations and reduce the size of the resulting signature. DSA Signature Creation and Verification to ...
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What are the benefits of Java's types erasure?

...ypes are to programs as theorems are to proofs. This correspondence is somewhat profound. We can take logical expressions, and translate them through the correspondence to types. Then if we have a program with the same type signature that compiles, we have proven that the logical expression is uni...
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ASP.NET MVC Razor pass model to layout

What I see is a string Layout property. But how can I pass a model to layout explicitly? 11 Answers ...