大约有 5,887 项符合查询结果(耗时:0.0336秒) [XML]

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Pretty-print an entire Pandas Series / DataFrame

...te_yearfirst, encoding, and many many more: pandas.pydata.org/pandas-docs/stable/options.html – nealmcb Jan 19 '17 at 14:15 ...
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How to work around the lack of transactions in MongoDB?

...is that, in a relational database, we need to make changes across multiple tables. Usually tables that need to be joined and so we want to do that all at once. And to do it, since there are multiple tables, we'll have to begin a transaction and do all those updates and then end the transaction. But ...
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How do you use version control with Access development?

...tion. It has a good amount of VBA, a number of queries, a small amount of tables, and a few forms for data entry & report generation. It's an ideal candidate for Access. ...
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How to use DISTINCT and ORDER BY in same SELECT statement?

..., such as Order, event, etc. so if you have (for example) a column in your table called Event you can write [Event] instead of Event to stop SQL throwing a parse error. – Ben Maxfield Oct 24 '16 at 21:26 ...
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Multiline string literal in C#

... to form a verbatim string literal: string query = @"SELECT foo, bar FROM table WHERE id = 42"; You also do not have to escape special characters when you use this method, except for double quotes as shown in Jon Skeet's answer. ...
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What is Lazy Loading?

...ded. I.e. suppose you needed to have a record which has a join of several tables. If you fetched it all at once it would take longer than if you would fetch say only the main table. Using lazy-loading the rest of the information will be fetched only if it is needed. So it is actually 'efficient-loa...
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Mac SQLite editor [closed]

... Unless I'm missing something, it doesn't allow you to alter existing tables. – mahdaeng Dec 12 '11 at 20:54 1 ...
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what is the difference between OLE DB and ODBC data sources?

...nt times. ODBC ODBC is an industry-wide standard interface for accessing table-like data. It was primarily developed for databases and presents data in collections of records, each of which is grouped into a collection of fields. Each field has its own data type suitable to the type of data it con...
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Floating elements within a div, floats outside of div. Why?

...to support old browsers, or using other block-level displays like display: table. Solution: BFC roots There is an exception to the problematic behavior defined at the beginning: if a block element establishes a Block Formatting Context (is a BFC root), then it will also wrap its floating contents....
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Is it possible to break a long line to multiple lines in Python [duplicate]

...t a list of strings instead of one long string: queryText= "SELECT * FROM TABLE1 AS T1"\ "JOIN TABLE2 AS T2 ON T1.SOMETHING = T2.SOMETHING"\ "JOIN TABLE3 AS T3 ON T3.SOMETHING = T2.SOMETHING"\ "WHERE SOMETHING BETWEEN <WHATEVER> AND <WHATEVER ELSE>"\ "ORDER BY WHATEVERS DESC" kinda li...