DISTINCTROW Keyword: The “DISTINCTROW” keyword omits data based entire duplicate records, not like just duplicate fields. The syntax for “DISTINCT” keyword is as follows: Syntax: SELECT DISTINCTROWcol_Name FROM table_Name1 INNER JOIN table_Name2 ON table_Name1.col_Name = table_Name2.col_Name ORDER BY table_Name1; GROUP BY Clause: The GROUPBY clause is used to group the result of a SELECT statement done on a table where the tuple values are similar for more than one column Syntax: SELECT expression1, expression2, expression_n, aggregate_function(expression)FROM table_name WHERE conditions GROUP BY expression1, expression2, expression_n; SUM function: The “SUM” function is used to add the value and then return the sum of the expression in a “SELECT” statement. Syntax: SELECT SUM (exp) FROM table_Name [WHERE condition]; INNER JOIN keyword: “INNER JOIN” keyword is used to select all the matching records of both the table. Syntax: SELECT col_Name FROM table_Name1 INNER JOIN table_Name2 ON table_Name1.col_Name = table_Name2.col_Name;

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Chapter 7, Problem 30P

Program Plan Intro

DISTINCTROW Keyword:

The “DISTINCTROW” keyword omits data based entire duplicate records, not like just duplicate fields. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCTROWcol_Name FROM table_Name1 INNER JOIN table_Name2 ON table_Name1.col_Name = table_Name2.col_Name ORDER BY table_Name1;

GROUP BY Clause:

The GROUPBY clause is used to group the result of a SELECT statement done on a table where the tuple values are similar for more than one column

Syntax:

SELECT expression1, expression2, expression_n, aggregate_function(expression)FROM table_name WHERE conditions GROUP BY expression1, expression2, expression_n;

SUM function:

The “SUM” function is used to add the value and then return the sum of the expression in a “SELECT” statement.

Syntax:

SELECT SUM (exp) FROM table_Name [WHERE condition];

INNER JOIN keyword:

“INNER JOIN” keyword is used to select all the matching records of both the table.

Syntax:

SELECT col_Name FROM table_Name1 INNER JOIN table_Name2 ON table_Name1.col_Name = table_Name2.col_Name;

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