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SQL Statements and Extensions for the Salesforce Driver : Select
  
Select
Purpose
Use the Select statement to fetch results from one or more tables. The Select statement can operate on local and remote tables in any combination.
Syntax
SELECT select_clausefrom_clause
[where_clause]
[groupby_clause]
[having_clause]
[{UNION [ALL | DISTINCT] |
{MINUS [DISTINCT] | EXCEPT [DISTINCT]} |
INTERSECT [DISTINCT]} select_statement]
[orderby_clause]
[limit_clause]
where:
select_clause
specifies the columns from which results are to be returned by the query. See Select Clause for a complete explanation.
from_clause
specifies one or more tables on which the other clauses in the query operate. See From Clause for a complete explanation.
where_clause
is optional and restricts the results that are returned by the query. See Where Clause for a complete explanation.
groupby_clause
is optional and allows query results to be aggregated in terms of groups. See Group By Clause for a complete explanation.
having_clause
is optional and specifies conditions for groups of rows (for example, display only the departments that have salaries totaling more than $200,000). See Having Clause for a complete explanation.
UNION
is an optional operator that combines the results of the left and right Select statements into a single result. See Union Operator for a complete explanation.
INTERSECT
is an optional operator that returns a single result by keeping any distinct values from the results of the left and right Select statements. See Intersect Operator for a complete explanation.
EXCEPT | MINUS
are synonymous optional operators that returns a single result by taking the results of the left Select statement and removing the results of the right Select statement. See Except and Minus Operators for a complete explanation.
orderby_clause
is optional and sorts the results that are returned by the query. See Order By Clause for a complete explanation.
limit_clause
is optional and places an upper bound on the number of rows returned in the result. See Limit Clause for a complete explanation.
* Select Clause