大约有 23,000 项符合查询结果（耗时：0.0306秒） [XML]
Select something that has more/less than x character
...egular index on EmployeeName will be useless to answer this query; the database will do a full table scan, which can be really costly.
However, various databases offer a function indexes feature that is designed to speed up queries like this. For example, in Oracle, you can create an index like th...
Call static method with reflection
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How to generate service reference with only physical wsdl file
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How to parse XML to R data frame
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Bash script to receive and repass quoted parameters
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Do I need to manually close an ifstream?
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Return 0 if field is null in MySQL
...s like this are usually problematic for scalability. If you think your database may get to be a decent size, it's often better to use extra columns and triggers to move the cost from the select to the insert/update.
This amortises the cost assuming your database is read more often than written (and...
Proper usage of Java -D command-line parameters
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SQL query for finding records where count > 1
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Difference between exit(0) and exit(1) in Python
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