大约有 47,000 项符合查询结果(耗时:0.0496秒) [XML]

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Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, ac

...ce is you call ResultSet.next(). public String test() { String sql = "select ID_NMB_SRZ from codb_owner.TR_LTM_SLS_RTN " + " where id_str_rt = '999' and ID_NMB_SRZ = '60230009999999'"; return jdbc.query(sql, new ResultSetExtractor<String>() { @Override ...
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Postgres DB Size Command

..."pg_datbase" system table. Just apply the function to the names, as below. select t1.datname AS db_name, pg_size_pretty(pg_database_size(t1.datname)) as db_size from pg_database t1 order by pg_database_size(t1.datname) desc; If you intend the output to be consumed by a machine instead of a...
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Code Wrap IntelliJ?

...o right click the gutter (the vertical bar where line number is shown) and select "Use Soft wraps" - thanks to Bajal for comment. share | improve this answer | follow ...
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Troubleshooting “Illegal mix of collations” error in mysql

Am getting the below error when trying to do a select through a stored procedure in MySQL. 16 Answers ...
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How can I set the default value for an HTML element?

I thought that adding a "value" attribute set on the <select> element below would cause the <option> containing my provided "value" to be selected by default: ...
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python list in sql query as parameter

...I paramstyle. placeholders= ', '.join(placeholder for unused in l) query= 'SELECT name FROM students WHERE id IN (%s)' % placeholders cursor.execute(query, l) share | improve this answer |...
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In jQuery, how do I select an element by its name attribute?

... Good point. Although it's still not "How to get selected radiobutton value using its name in jQuery?". It's "How to get selected radiobutton value when clicking on it using jQuery?". A small difference, but one that baffled me for a bit. – gargantuan ...
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Error while installing json gem 'mkmf.rb can't find header files for ruby'

...installing command-line tools and accepting the license with sudo xcode-select --install sudo xcodebuild -license accept The issue is that Xcode 11 ships the macOS 10.15 SDK which includes headers for ruby2.6, but not for macOS 10.14's ruby2.3. You can verify that this is your problem by runnin...
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Modifying a subset of rows in a pandas dataframe

...The df.A==0 expression creates a boolean series that indexes the rows, 'B' selects the column. You can also use this to transform a subset of a column, e.g.: df.loc[df.A==0, 'B'] = df.loc[df.A==0, 'B'] / 2 I don't know enough about pandas internals to know exactly why that works, but the basic is...
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UPDATE multiple tables in MySQL using LEFT JOIN

...= t1.id SET t1.col1 = newvalue WHERE t2.id IS NULL Note that for a SELECT it would be more efficient to use NOT IN / NOT EXISTS syntax: SELECT t1.* FROM t1 WHERE t1.id NOT IN ( SELECT id FROM t2 ) See the article in my blog for performance details...