大约有 3,551 项符合查询结果（耗时：0.0209秒） [XML]
UnicodeEncodeError: 'latin-1' codec can't encode character
...s encoding allows any character to be used. You should also ideally tell MySQL you are using UTF-8 strings (by setting the database connection and the collation on string columns), so it can get case-insensitive comparison and sorting right.
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How to compare objects by multiple fields
...returned). This type of sorting is very similar to multi-column sorting in SQL, and this class allows Java classes to emulate that kind of behaviour when sorting a List.
To further facilitate SQL-like sorting, the order of any single Comparator in the list can >be reversed.
Calling a method that ...
.NET Configuration (app.config/web.config/settings.settings)
...nd Release builds. E.g. the debug app.config file points to a development SQL Server which has debugging enabled and the release target points to the live SQL Server. There are also other settings, some of which are different in debug/release.
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Boolean Field in Oracle
... uses Y/N for Boolean values. For completeness it should be noted that pl/sql has a boolean type, it is only tables that do not.
If you are using the field to indicate whether the record needs to be processed or not you might consider using Y and NULL as the values. This makes for a very small ...
Neo4j - Cypher vs Gremlin query language
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I had the understanding that Cypher was more like SQL, in that you tell it what you want, and it works out how to do it. With Gremlin, you issue exacts traversal commands, which it must obey.
– Stewart
Feb 8 '13 at 12:49
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How do I find duplicates across multiple columns?
So I want to do something like this sql code below:
7 Answers
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Flat file databases [closed]
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You might consider SQLite. It's almost as simple as flat files, but you do get a SQL engine for querying. It works well with PHP too.
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Ignoring accented letters in string comparison
... ok this method failed for these 2 strings : tarafli / TARAFLİ however SQL server says equal as supposed to be
– MonsterMMORPG
Jan 12 '15 at 15:38
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Which is faster: multiple single INSERTs or one multiple-row INSERT?
I am trying to optimize one part of my code that inserts data into MySQL. Should I chain INSERTs to make one huge multiple-row INSERT or are multiple separate INSERTs faster?
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Storing Images in PostgreSQL
...m working on an application which will use a Linux back-end running PostgreSQL to serve up images to a Windows box with the front end written in C#.NET, though the front-end should hardly matter. My question is:
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