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This SQL tutorial explains how to use the SQL EXISTS condition with syntax and examples. Click the Try It button next to an example to test it for yourself in our SQL Editor. The SQL EXISTS condition is used in combination with a subquery and is considered to be met, if the subquery returns at least one row.
SQL is an interactive procedure, in whichRUN has no meaning. QUIT forces a step boundary,terminating the procedure. An SQL table in SAS isidentical to a SAS data set. The output table could alsobe a permanent SAS data set; in such case, it wouldsimply be referenced by a two-level name (e.g.EX.SELVAR2). A few other features of this simplestatement are worth noting.