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How to concatenate strings of a string field in a PostgreSQL 'group by' query?

... 8.4 or later: PostgreSQL 8.4 (in 2009) introduced the aggregate function array_agg(expression) which concatenates the values into an array. Then array_to_string() can be used to give the desired result: SELECT company_id, array_to_string(array_agg(employee), ', ') FROM mytable GROUP BY company_id...
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How can I make Array.Contains case-insensitive on a string array?

I am using the Array.Contains method on a string array. How can I make that case-insensitive? 4 Answers ...
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From an array of objects, extract value of a property as array

I have JavaScript object array with the following structure: 16 Answers 16 ...
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How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]

Can someone tell me how to detect if "specialword" appears in an array? Example: 5 Answers ...
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Way to ng-repeat defined number of times instead of repeating over array?

...eat a defined number of times instead of always having to iterate over an array? 26 Answers ...
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How can I split a comma delimited string into an array in PHP?

I need to split my string input into an array at the commas. 10 Answers 10 ...
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How to convert a char array back to a string?

I have a char array: 15 Answers 15 ...
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Removing duplicate values from a PowerShell array

How can I remove duplicates from a PowerShell array? 7 Answers 7 ...
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array

I need to check a JavaScript array to see if there are any duplicate values. What's the easiest way to do this? I just need to find what the duplicated values are - I don't actually need their indexes or how many times they are duplicated. ...
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Range references instead values

... The short & direct answer: no, use the array index instead of the value So the above code becomes: package main import "fmt" type MyType struct { field string } func main() { var array [10]MyType for idx, _ := range array { array[idx].fie...