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New posts in aggregate-functions
Union of arrays as aggregate function
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The most useful User-Defined Aggregate Functions [closed]
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BigQuery User Defined Aggregation Function?
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Efficiently Include Column not in Group By of SQL Query
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How to declare an array of rowtype in a PostgreSQL function?
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SQL using CASE in count and group by
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Aggregate hstore column in PostreSQL
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sql
postgresql
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Create array in SELECT
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sql
postgresql
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sql
sql-server
count
group-by
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How can you use COUNT() in a comparison in a SELECT CASE clause in Sql Server?
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sql
sql-server
count
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sql-server
postgresql
group-by
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mysql grouping by week
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sql
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