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What are attributes in .NET?

... ECMMainPageDisplay::ControlDescriptionAttribute ^description = safe_cast <ECMMainPageDisplay::ControlDescriptionAttribute ^> (attribute); // get the name and description and create an entry in the list ListViewItem ^item = gcnew ListViewItem (description->Name); i...
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Add primary key to existing table

...PMID) edit: you can find the constraint name by using the query below: select OBJECT_NAME(OBJECT_ID) AS NameofConstraint FROM sys.objects where OBJECT_NAME(parent_object_id)='Persion' and type_desc LIKE '%CONSTRAINT' sh...
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How to find the size of an array in postgresql

...ikely) and are running PostgreSQL 9.4 or higher, you can use cardinality: SELECT cardinality(id) FROM example; share | improve this answer | follow | ...
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How can I find out what FOREIGN KEY constraint references a table in SQL Server?

... Here it is: SELECT OBJECT_NAME(f.parent_object_id) TableName, COL_NAME(fc.parent_object_id,fc.parent_column_id) ColName FROM sys.foreign_keys AS f INNER JOIN sys.foreign_key_columns AS fc ON f.OBJECT_ID = fc.constra...
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MySQL Insert into multiple tables? (Database normalization?)

... 2 and 3: Will stock the LAST_INSERT_ID() in a MySQL variable: INSERT ... SELECT LAST_INSERT_ID() INTO @mysql_variable_here; INSERT INTO table2 (@mysql_variable_here, ...); INSERT INTO table3 (@mysql_variable_here, ...); Will stock the LAST_INSERT_ID() in a php variable (or any language that can c...
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Cannot drop database because it is currently in use

...ar(50) SET @DatabaseName = N'YOUR_DABASE_NAME' DECLARE @SQL varchar(max) SELECT @SQL = COALESCE(@SQL,'') + 'Kill ' + Convert(varchar, SPId) + ';' FROM MASTER..SysProcesses WHERE DBId = DB_ID(@DatabaseName) AND SPId <> @@SPId --SELECT @SQL EXEC(@SQL) ...
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Images can't contain alpha channels or transparencies

...rt to PNG without alpha in Preview. Simply open your image, choose export, select PNG, uncheck Alpha, and click Save. Preview also support batch export if you open all your images at once. – Russell Ladd Jan 7 '15 at 6:23 ...
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View more than one project/solution in Visual Studio

... With multiple projects, if I have multiple main() methods, how do I select which I want to have compiled? – 5Daydreams Aug 11 at 16:12 add a comment  ...
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Oracle SQL escape character (for a '&')

... table blah (x varchar(20)); insert into blah (x) values ('blah&amp'); select * from blah; X -------------------- blah&amp share | improve this answer | ...
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]

...bdas can't be spelled, so auto f = []... is good style. The alternative is casting to std::function but that comes with overhead. I can't really conceive of an "abuse" of auto. The closest I can imagine is depriving yourself of an explicit conversion to some significant type -- but you wouldn't use...