大约有 40,000 项符合查询结果(耗时:0.0210秒) [XML]

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What's the difference between VARCHAR and CHAR?

... CHAR Used to store character string value of fixed length. The maximum no. of characters the data type can hold is 255 characters. It's 50% faster than VARCHAR. Uses static memory allocation. VARCHAR Used to store variable length alphanumeric data. T...
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What data type to use for hashed password field and what length?

...rd_hash("rasmuslerdorf", PASSWORD_DEFAULT); The result is a 60-character string similar to the following (but the digits will vary, because it generates a unique salt). $2y$10$.vGA1O9wmRjrwAVXD98HNOgsNpDczlqm3Jq7KnEd1rVAGv3Fykk1a Use the SQL data type CHAR(60) to store this encoding of a Bcrypt...
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How to check if a String is numeric in Java

How would you check if a String was a number before parsing it? 39 Answers 39 ...
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Get individual query parameters from Uri [duplicate]

I have a uri string like: http://example.com/file?a=1&b=2&c=string%20param 9 Answers ...
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Is there an easy way to return a string repeated X number of times?

I'm trying to insert a certain number of indentations before a string based on an items depth and I'm wondering if there is a way to return a string repeated X times. Example: ...
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How to use putExtra() and getExtra() for string data

...xactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity. ...
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Is there a way to specify how many characters of a string to print out using printf()?

Is there a way to specify how many characters of a string to print out (similar to decimal places in int s)? 8 Answers ...
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Simple Digit Recognition OCR in OpenCV-Python

...sults, neigh_resp, dists = model.find_nearest(roismall, k = 1) string = str(int((results[0][0]))) cv2.putText(out,string,(x,y+h),0,1,(0,255,0)) cv2.imshow('im',im) cv2.imshow('out',out) cv2.waitKey(0) And it worked, below is the result I got: Here it worked with 100% ...
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How to strip HTML tags from a string in SQL Server?

... Note that as a string-intensive UDF in SQL Server 2005 or later, this is a perfect candidate for implementing a CLR UDF function for a massive performance boost. More info on doing so here: stackoverflow.com/questions/34509/… ...
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How to search a specific value in all tables (PostgreSQL)?

... can you explain in detail .. ? How to search string 'ABC' into all tables ? – Mr. Bhosale Jan 28 '17 at 6:47 1 ...