select count of distinct values sql
SELECT COUNT (DISTINCT column-name) FROM table-nameselect count of distinct values sql
SELECT COUNT (DISTINCT column-name) FROM table-nameconstraint unique sql
ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col_name);
ALTER TABLE table_name ADD CONSTRAINT cst_name UNIQUE (col1, col2); -- Multiple
ALTER TABLE table_name ADD col_name NUMBER UNIQUE; -- New fieldsql count distinct group by
SELECT COUNT(DISTINCT program_name) AS Count,
program_type AS [Type]
FROM cm_production
WHERE push_number=@push_number
GROUP BY program_typeCopyright © 2021 Codeinu
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