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Mysql ibdata 丢失或损坏如何通过frm&ibd 恢复数据 - 更多技术 - 清泛网 - ...
Mysql ibdata 丢失或损坏如何通过frm&ibd 恢复数据mysql存储在磁盘中，各种天灾人祸都会导致数据丢失。大公司的时候我们常常需要做好数据冷热备，对于小公司来说要做好所有数据备份需要支出...mysql存储在磁盘中，各种天灾人祸...
Convert String[] to comma separated string in java
...in(names,"','") + "'"; this would give you the Single quotes needed by the SQL request.
– haysclark
Feb 26 '16 at 4:22
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Best Practices: Salting & peppering passwords?
...o control over the server/code. This situation is not uncommon: aside from SQL-injection, also thrown away backups, discarded servers… can lead to this situation. A lot of PHP users work on hosted servers.
– martinstoeckli
Jun 4 '13 at 20:14
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SQLAlchemy: What's the difference between flush() and commit()?
What the difference is between flush() and commit() in SQLAlchemy?
5 Answers
5
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How do I show the schema of a table in a MySQL database?
From the MySQL console, what command displays the schema of any given table?
5 Answers
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One DbContext per web request… why?
...s applicable to any sort of Unit of Work implementation, such as
LINQ to SQL's DataContext, and NHibernate's ISession.
Let start by echoing Ian: Having a single DbContext for the whole application is a Bad Idea. The only situation where this makes sense is when you have a single-threaded applica...
Difference between BYTE and CHAR in column datatypes
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Not the answer you're looking for? Browse other questions tagged sql oracle unicode varchar or ask your own question.
How can I implement an Access Control List in my Web MVC application?
...n invoice, it does not matter where data comes from. It can be either from SQL or from a remote REST API, or even screenshot of a MSWord document. The business logic does no change.
- Data Access and Storage
Instances made from this group of classes are sometimes called Data Access Objects. Usual...
Inserting data into a temporary table
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My way of Insert in SQL Server. Also I usually check if a temporary table exists.
IF OBJECT_ID('tempdb..#MyTable') IS NOT NULL DROP Table #MyTable
SELECT b.Val as 'bVals'
INTO #MyTable
FROM OtherTable as b
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data.table vs dplyr: can one do something well the other can't or does poorly?
...diff, fintersect, funion and fsetequal with additional all argument (as in SQL).
data.table loads cleanly with no masking warnings and has a mechanism described here for [.data.frame compatibility when passed to any R package. dplyr changes base functions filter, lag and [ which can cause problems; ...