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How to check if a database exists in SQL Server?
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From a Microsoft's script:
DECLARE @dbname nvarchar(128)
SET @dbname = N'Senna'
IF (EXISTS (SELECT name
FROM master.dbo.sysdatabases
WHERE ('[' + name + ']' = @dbname
OR name = @dbname)))
-- code mine :)
PRINT 'db exists'
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C# equivalent to Java's charAt()?
...he character at that index.
Example:
In Java, you would say
str.charAt(8);
In C#, you would say
str[8];
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MySQL remove all whitespaces from the entire column
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edited Jun 9 '18 at 9:08
Bibek Lekhak
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answered Sep 6 '11 at...
Adding Http Headers to HttpClient
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Darrel MillerDarrel Miller
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Revert the `--no-site-packages` option with virtualenv
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Zain Rizvi
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answered Jul 30 '10 at 18:54
arsars
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What would be the Unicode character for big bullet in the middle of the character?
...har/1f311
– D Coetzee
Aug 30 '13 at 8:12
1
Beware of semantics under various fonts (if that is be...
DBMS_OUTPUT.PUT_LINE not printing
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8
@dexter - OK. Then you just need to add the set serveroutput on command before executing the procedure in SQL*Plus.
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Replace specific characters within strings
...pression and the function gsub():
group <- c("12357e", "12575e", "197e18", "e18947")
group
[1] "12357e" "12575e" "197e18" "e18947"
gsub("e", "", group)
[1] "12357" "12575" "19718" "18947"
What gsub does here is to replace each occurrence of "e" with an empty string "".
See ?regexp or gsub ...
Application Loader: “Cannot proceed with delivery: an existing transporter instance is currently upl
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208
Basically, you need to clear out the transport tokens. This can happen if you were to close out ...
Regular expression: find spaces (tabs/space) but not newlines
...swers have mentioned.
– Gus
Nov 9 '18 at 15:10
1
Why a space before \t ?
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