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一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术
...一的、全新的技术，而是多种现有技术（如加密算法、P2P文件传输等）整合的结果，这些技术与数据库巧妙地组合在一起，形成了一种新的数据记录、传递、存储与呈现的方式。简单的说，区块链技术就是一种大家共同参与记录...
Difference between \n and \r?
...ere still some applications using \r - e.g. MS Office 2011 Excel: Saving a CSV (with all default settings) - will save an ISO-8859-1 encoded file with \r-line endings.
– CodeBrauer
Jul 11 '17 at 12:48
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Get size of all tables in database
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You can also export the list in a CSV file by using an utility like NirSoft SysExporter: nirsoft.net/utils/sysexp.html
– Max
May 28 at 15:44
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What parameters should I use in a Google Maps URL to go to a lat-lon?
...le times.
via=
Allows you to insert via points in directions. Must be in CSV format. For example, via=1,5 addresses 1 and 5 will be via points without entries in the sidebar. The start point (which is set as 0), and 2, 3 and 4 will all show full addresses.
doflg=
Changes the units used to measur...
How do I switch to another subversion branch in Intellij?
... The user expect similar experience from IDEA across different CSV, which is hard to do cause SVN approach looks "dumb" from GIT prospective. The confusion is in that "same experience" expectation from IDEA magic.
– smile-on
May 29 '15 at 13:28
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Reading Excel files from C#
...port.Tables[0];
#region Commented code for importing data from CSV file.
// string strConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source=" + System.IO.Path.GetDirectoryName(fullFileName) +";" +"Extended Properties=\"Text;HDR=YES;FMT=Delimited\""...
How do I parse a string with a decimal point to a double?
...arator from ',' to '.' and list separator from ';' to ','. You know, cause csv... Good luck to us all writing multi-culture apps ;)
– Steven Spark
Jun 22 '18 at 13:15
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How to output a comma delimited list in jinja python template?
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While this works for creating a csv, seeing his example above, it can't be used with the surrounding anchor.
– triunenature
Nov 22 '15 at 6:18
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...le as select * from test where false; copy temporary_table from 'data_file.csv'; lock table test; update test set data=temporary_table.data from temporary_table where test.id=temporary_table.id; insert into test select * from temporary_table where id not in (select id from test) as a"
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How do I write JSON data to a file?
... "the answer":42
}
}
Common file endings
.json
Alternatives
CSV: Super simple format (read & write)
JSON: Nice for writing human-readable data; VERY commonly used (read & write)
YAML: YAML is a superset of JSON, but easier to read (read & write, comparison of JSON and YAML...