大约有 40,000 项符合查询结果(耗时:0.0411秒) [XML]

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How to select/get drop down option in Selenium 2

...converting my selenium 1 code to selenium 2 and can't find any easy way to select a label in a drop down menu or get the selected value of a drop down. Do you know how to do that in Selenium 2? ...
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Get top n records for each group of grouped results

...ould need to specify the group number and add queries for each group: ( select * from mytable where `group` = 1 order by age desc LIMIT 2 ) UNION ALL ( select * from mytable where `group` = 2 order by age desc LIMIT 2 ) There are a variety of ways to do this, see this articl...
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select count(*) from table of mysql in php

...s keyword in order to call it from mysql_fetch_assoc $result=mysql_query("SELECT count(*) as total from Students"); $data=mysql_fetch_assoc($result); echo $data['total']; share | improve this answ...
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Is it possible to specify condition in Count()?

...an use the fact that the count aggregate only counts the non-null values: select count(case Position when 'Manager' then 1 else null end) from ... You can also use the sum aggregate in a similar way: select sum(case Position when 'Manager' then 1 else 0 end) from ... ...
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How to restore to a different database in sql server?

...restore. Kill all running processes by right clicking on each process and selecting "kill process". Right click on the database you wish to restore, and select Tasks-->Restore-->From Database. Select the "From Device:" radio button. Select ... and choose the backup file of the other database ...
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How to strip all non-alphabetic characters from string in SQL Server?

...ex(@KeepValues, @Temp), 1, '') Return @Temp End Call it like this: Select dbo.RemoveNonAlphaCharacters('abc1234def5678ghi90jkl') Once you understand the code, you should see that it is relatively simple to change it to remove other characters, too. You could even make this dynamic enough ...
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Select row with most recent date per user

... Query: SQLFIDDLEExample SELECT t1.* FROM lms_attendance t1 WHERE t1.time = (SELECT MAX(t2.time) FROM lms_attendance t2 WHERE t2.user = t1.user) Result: | ID | USER | TIME | IO | ---------------------------...
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Select SQL Server database size

... Try this one - Query: SELECT database_name = DB_NAME(database_id) , log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2)) , row_size_mb = CAST(SUM(CASE WHEN type_desc = 'ROWS' THEN size END) ...
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MySQL Conditional Insert

... If your DBMS does not impose limitations on which table you select from when you execute an insert, try: INSERT INTO x_table(instance, user, item) SELECT 919191, 123, 456 FROM dual WHERE NOT EXISTS (SELECT * FROM x_table WHERE user = ...
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Add a number to each selection in Sublime Text 2, incremented once per selection

... M represents the step size which will be added to the index for each selection. P must be > 0 and will be used to pad the index with leading zeroes. share | improve this answer ...