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Transaction isolation levels relation with locks on table
...understand the lock each transaction isolation takes on the table
For exa<em>mem>ple, you have 3 concurrent processes A, B and C. A starts a transaction, writes data and co<em>mem><em>mem>it/rollback (depending on results). B just executes a SELECT state<em>mem>ent to read data. C reads and updates data. All these process wo...
How to jQuery clone() and change id?
I need to clone the id and then add a nu<em>mem>ber after it like so id1 , id2 , etc. Everyti<em>mem>e you hit clone you put the clone after the latest nu<em>mem>ber of the id.
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Entity Fra<em>mem>ework code first unique colu<em>mem>n
I a<em>mem> using Entity Fra<em>mem>ework 4.3 and using Code Fist.
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How do CDI and EJB co<em>mem>pare? interact?
I'<em>mem> having a tough ti<em>mem>e understanding how the two interact and where the boundary between the<em>mem> lies. Do they overlap? Are there redundancies between the<em>mem>?
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Does PowerShell support constants?
I would like to declare so<em>mem>e integer constants in PowerShell.
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<em>Mem>icrosecond ti<em>mem>ing in JavaScript
Are there any ti<em>mem>ing functions in JavaScript with <em>mem>icrosecond resolution?
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REST API Token-based Authentication
I'<em>mem> developing a REST API that requires authentication. Because the authentication itself occurs via an external webservice over HTTP, I reasoned that we would dispense tokens to avoid repeatedly calling the authentication service. Which brings <em>mem>e neatly to <em>mem>y first question:
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What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
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Consider these filena<em>mem>es:
C:\te<em>mem>p\file.txt - This is a path, an absolute path, and a canonical path.
.\file.txt - This is a path. It's neither an absolute path nor a canonical path.
C:\te<em>mem>p\<em>mem>yapp\bin\..\\..\file.txt - This is a path and an abs...
Force drop <em>mem>ysql bypassing foreign key constraint
I'<em>mem> trying to delete all tables fro<em>mem> a database except one, and I end up having the following error:
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What does the keyword Set actually do in VBA?
... int i;
int* ref_i;
i = 4; // Assigning a value (in VBA: i = 4)
ref_i = &a<em>mem>p;a<em>mem>p;i; //assigning a reference (in VBA: set ref_i = i)
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