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What is the optimal length for an email address in a database?
...acted portion of my query, reflecting the EMAIL_ADDRESS column data type and property:
8 Answers
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How to think in data stores instead of databases?
As an example, Google App Engine uses Google Datastore, not a standard database, to store data. Does anybody have any tips for using Google Datastore instead of databases? It seems I've trained my mind to think 100% in object relationships that map directly to table structures, and now it's hard t...
Why must wait() always be in synchronized block
... to explicitly acquire the monitor by making particular block synchronized and then release the monitor by calling wait() ?
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What is the difference between `let` and `var` in swift?
What is the difference between let and var in Apple's Swift language?
30 Answers
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Difference between local and global indexes in DynamoDB
I'm curious about these two secondary indexes and differences between them. It is hard to imagine how this looks like. And I think, this will help more people than just me.
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How to store a list in a column of a database table
...ould create another table that effectively holds the elements of said list and then link to it directly or through a junction table. However, the type of list I want to create will be composed of unique items (unlike the linked question's fruit example). Furthermore, the items in my list are exp...
Batch script: how to check for admin rights
...erything except Windows 8. Running AT on Windows 8 results in:
The AT command has been deprecated. Please use schtasks.exe instead.
The request is not supported.
(see screenshot #1) and will return %errorLevel% 1.
Research
So, I went searching for other commands that require elevated permi...
What are the -Xms and -Xmx parameters when starting JVM?
Please explain the use of Xms and Xmx parameters in JVMs. What are the default values for them?
5 Answers
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What are free monads?
I've seen the term Free Monad pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of cat...
What is InnoDB and MyISAM in MySQL?
What is InnoDB and MyISAM in MySQL ?
8 Answers
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