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Importing files from different folder
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edited Sep 21 at 14:33
answered Dec 8 '10 at 2:12
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What is the “__v” field in Mongoose
I'm using Mongoose version 3 with MongoDB version 2.2. I've noticed a __v field has started appearing in my MongoDB documents. Is it something to do with versioning? How is it used?
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How do I view all commits for a specific day?
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238
Thanks John Bartholomew!
The answer is to specify the time, e.g. git log --after="2013-11-12...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
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MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA61BjmfXGEvWmegnBGSuS
+rU9soUg2FnODva32D1AqhwdziwHINFaD1MVlcrYG6XRKfkcxnaXGfFDWHLEvNBS
EVCgJjtHAGZIm5GL/KA86KDp/CwDFMSwluowcXwDwoyinmeOY9eKyh6aY72xJh7n
oLBBq1N0bWi1e2i+83txOCg4yV2oVXhBo8pYEJ8LT3el6Smxol3C1oFMVdwPgc0v
Tl25XucMcG/ALE/KNY6pqC2AQ6R2ERlVgPiUWO...
Computed / calculated / virtual / derived columns in PostgreSQL
...- as defined in the SQL standard and implemented by some RDBMS including DB2, MySQL and Oracle. Nor the similar "computed columns" of SQL Server.
STORED generated columns are introduced with Postgres 12. Trivial example:
CREATE TABLE tbl (
int1 int
, int2 int
, product bigint GENERATED ALW...
How to update column with null value
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228
No special syntax:
CREATE TABLE your_table (some_id int, your_column varchar(100));
INSERT I...
Issue with virtualenv - cannot activate
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开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明 - 开源 & Github - 清泛网 ...
开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明Jumpserver 是一款由python编写开源的跳板机(堡垒机)系统，实现了跳板机应有的功能。基于ssh协议来管理，客户端无需安装agent。 支持常见系统:
CentOS, RedHat, Fedora, Amazon Linux
Debian
SUSE, Ubunt...
What does ||= (or-equals) mean in Ruby?
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