大约有 41,000 项符合查询结果(耗时:0.0278秒) [XML]

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How to do a regular expression replace in MySQL?

...ositions and perform substring substitution and extraction, respectively. SELECT REGEXP_REPLACE('Stackoverflow','[A-Zf]','-',1,0,'c'); -- Output: -tackover-low DBFiddle Demo share | improve this ...
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How to define a preprocessor symbol in Xcode

...ur Target or Project settings, click the Gear icon at the bottom left, and select "Add User-Defined Setting". The new setting name should be GCC_PREPROCESSOR_DEFINITIONS, and you can type your definitions in the right-hand field. Per Steph's comments, the full syntax is: constant_1=VALUE constant_...
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How can I convert a hex string to a byte array? [duplicate]

...gth) .Where(x => x % 2 == 0) .Select(x => Convert.ToByte(hex.Substring(x, 2), 16)) .ToArray(); } share | improve this answer ...
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Is there a way to call a stored procedure with Dapper?

...: DECLARE @output int EXEC <some stored proc> @i = @output OUTPUT SELECT @output AS output1 share | improve this answer | follow | ...
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How to search a specific value in all tables (PostgreSQL)?

... If you're using IntelliJ you can just right-click your db and select "Dump with 'pg_dump'" or "Dump data to file(s)" – Laurens Nov 29 '17 at 12:26 3 ...
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Correct way to use StringBuilder in SQL

...: StringBuilder sb = new StringBuilder(some_appropriate_size); sb.append("select id1, "); sb.append(id2); sb.append(" from "); sb.append(table); return sb.toString(); Note that I've listed some_appropriate_size in the StringBuilder constructor, so that it starts out with enough capacity for the f...
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Insert new column into table in sqlite?

... populate it with the old data: INSERT INTO {tableName} (name, qty, rate) SELECT name, qty, rate FROM TempOldTable; Then delete the old table: DROP TABLE TempOldTable; I'd much prefer the second option, as it will allow you to completely rename everything if need be. ...
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Split value from one field to two

...); END$$ DELIMITER ; you would be able to build your query as follows: SELECT SPLIT_STR(membername, ' ', 1) as memberfirst, SPLIT_STR(membername, ' ', 2) as memberlast FROM users; If you prefer not to use a user defined function and you do not mind the query to be a bit more verbose, ...
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How do I do string replace in JavaScript to convert ‘9.61’ to ‘9:61’?

... $("#text").val(); // value = 9.61 use $("#text").text() if you are not on select box... value = value.replace(".", ":"); // value = 9:61 // can then use it as $("#anothertext").val(value); Updated to reflect to current version of jQuery. And also there are a lot of answers here that would best ...
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Debugging with command-line parameters in Visual Studio

... Make sure you have the correct Configuration selected in the dropdown at the top of the Property pages, i.e. the same configuration as the one you are trying to run. – Steve Smith Jan 4 '18 at 14:51 ...