大约有 45,000 项符合查询结果(耗时:0.1243秒) [XML]

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How to reset sequence in postgres and fill id column with new data?

...oth provided solutions did not work for me; > SELECT setval('seq', 0); ERROR: setval: value 0 is out of bounds for sequence "seq" (1..9223372036854775807) setval('seq', 1) starts the numbering with 2, and ALTER SEQUENCE seq START 1 starts the numbering with 2 as well, because seq.is_called is...
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What does the question mark operator mean in Ruby?

...a boolean return type so I tried adding them to flag variables, leading to errors. This led to me erroneously believing for a while that there was some special syntax involving ?s. Relevant: Why can't a variable name end with `?` while a method name can? ...
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How to automatically indent source code?

... It may be worth noting that auto-indent does not work if there are syntax errors in the document. Get rid of the red squigglies, and THEN try CTRL+K, CTRL+D, whatever... share | improve this answer...
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How to convert nanoseconds to seconds using the TimeUnit enum?

...uld never write out 1 followed by a whole mess of 0's due to it being very error prone. – demongolem Feb 23 '16 at 18:56 1 ...
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Rails 3 - can't install pg gem

... As stated in your error log you need to pass in the path to the pg_config. Try to install the gem using: gem install pg -- --with-pg-config= 'PATH_TO_YOUR_PG_CONFIG' If you are not sure where your pg_config is, and assuming you are on Linux...
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Changing a specific column name in pandas DataFrame

... df.rename({'two':'new_name'}, axis='columns') Throws TypeError: Cannot specify both 'axis' and any of 'index' or 'columns'. – HereHere Dec 30 '17 at 23:37 ...
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Remove the last character from a string [duplicate]

... First, I try without a space, rtrim($arraynama, ","); and get an error result. Then I add a space and get a good result: $newarraynama = rtrim($arraynama, ", "); share | improve this a...
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Swap key with value JSON

... SyntaxError: /Users/markus/Entwicklung/IT1_Beleg/public/es6/vokabeltrainer.js: Unexpected token (53:45) 51 | if (btoa) { 52 | entries = Object.entries(entries) > 53 | .reduce((obj, [key, value]) =>...
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How to drop a table if it exists?

... That will drop the table only if it contains any rows (and will raise an error if the table does not exist). Instead, for a permanent table you can use IF OBJECT_ID('dbo.Scores', 'U') IS NOT NULL DROP TABLE dbo.Scores; Or, for a temporary table you can use IF OBJECT_ID('tempdb.dbo.#T', 'U...
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You must enable the openssl extension to download files via https

... I am Using xampp, Composer giving the same open ssl missing error even after removing the ';' of openssl extension in php.ini. – Shashikumar Misal May 29 '14 at 11:37 ...