Code for "How to Retrieve Column Names from a Table in SQL"

sql-queries/calculate-running-total/running-total

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+SELECT id, scores, SUM(scores)
+OVER (ORDER BY id) AS RunningTotal
+FROM Exam;
+
+SELECT id, scores, (SELECT SUM(scores)
+                    FROM exam e2 WHERE e2.id <= e1.id) AS RunningTotal
+FROM exam e1 ORDER BY id;
+
+SELECT s1.id, s1.scores, SUM(s2.scores) AS RunningTotal
+FROM Exam s1
+JOIN Exam s2 ON s1.id >= s2.id
+GROUP BY s1.id, s1.scores ORDER BY s1.id;

sql-queries/running-total/running-total.sql

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+SELECT id, scores, SUM(scores)
+OVER (ORDER BY id) AS RunningTotal
+FROM Exam;
+
+SELECT id, scores, (SELECT SUM(scores)
+                    FROM exam e2 WHERE e2.id <= e1.id) AS RunningTotal
+FROM Exam e1 ORDER BY id;
+
+SELECT s1.id, s1.scores, SUM(s2.scores) AS RunningTotal
+FROM Exam s1
+JOIN Exam s2 ON s1.id >= s2.id
+GROUP BY s1.id, s1.scores ORDER BY s1.id;

sql-queries/sql-column-name/sql-column-name-mysql.sql

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+SHOW COLUMNS FROM Course;
+
+DESCRIBE Course;
+
+SELECT COLUMN_NAME 
+FROM INFORMATION_SCHEMA.COLUMNS 
+WHERE TABLE_NAME = 'Course';

sql-queries/sql-column-name/sql-column-name-postgresqlSELECT column_name FROM information_schema.columns WHERE table_name = 'Course';.sql

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+SELECT column_name
+  FROM information_schema.columns
+  WHERE table_name = 'Course';
+
+\d Course

sql-queries/sql-column-name/sql-column-name-sqlserver.sql

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+SELECT COLUMN_NAME
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE TABLE_NAME = 'Course' 
+  ORDER BY ORDINAL_POSITION;
+
+SELECT c.name AS ColumnName
+  FROM sys.columns c INNER JOIN sys.tables t
+  ON c.object_id = t.object_id
+  WHERE t.name = 'Course'
+  ORDER BY c.column_id;