大约有 6,000 项符合查询结果(耗时:0.0281秒) [XML]
How do I modify fields inside the new PostgreSQL JSON datatype?
With postgresql 9.3 I can SELECT specific fields of a JSON data type, but how do you modify them using UPDATE? I can't find any examples of this in the postgresql documentation, or anywhere online. I have tried the obvious:
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Rails find record with zero has_many records associated [duplicate]
... @sixty4bit - It works because when you do includes it does a join. In a SQL join, you get all the fields of both tables (in this case cities and photos) for each row unless you change the projection of the query. So, he's using that to his advantage to check whether a required database identifier...
The EXECUTE permission was denied on the object 'xxxxxxx', database 'zzzzzzz', schema 'dbo'
... For some reason this is the only answer that works for me on SQL Server 2012. Giving my user explicit EXECUTE permission does not work. It only works if it inherits the permission through a role.
– Keith
Jan 22 '16 at 14:45
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What does ON [PRIMARY] mean?
I'm creating an SQL setup script and I'm using someone else's script as an example. Here's an example of the script:
4 Ans...
Received an invalid column length from the bcp client for colid 6
I want to bulk upload csv file data to sql server 2005 from c# code but I am encountering the below error -
7 Answers
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What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
..."Actual type: {0}", obj.GetType().Name);
}
Let's try an arbitrary linq-to-sql Table<T>, which implements IQueryable:
ReportTypeProperties(context.Observations);
ReportTypeProperties(context.Observations.AsEnumerable());
ReportTypeProperties(context.Observations.AsQueryable());
The result:
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SQL Server Management Studio SSMS tries to “save to file” instead of execute on F5
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1227614%2fsql-server-management-studio-ssms-tries-to-save-to-file-instead-of-execute-on%23new-answer', 'question_page');
}
);
Post as a guest
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Set database from SINGLE USER mode to MULTI USER
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The “user is currently connected to it” might be SQL Server Management Studio window itself. Try selecting the master database and running the ALTER query again.
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String.IsNullOrWhiteSpace in LINQ Expression
...eter] IS NULL) OR (LTRIM(RTRIM([t0].[Diameter])) = @p0))
and for Linq to SQL almost but not quite the same
DECLARE @p0 NVarChar(1000) = ''
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WHERE NOT (LTRIM(RTRIM([t0].[TypeName])) = @p0)
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How to do an update + join in PostgreSQL?
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coming from mysql it's unintuitive that the same join used for select won't also update just by adding a set phrase :( still - the syntax for this is probably easier for a newcomer to sql to master.
– WEBjuju
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