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dev:sql:functions:current_row [2010/07/09 16:56] tdo |
dev:sql:functions:current_row [2016/06/28 22:38] (current) |
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====== Omnidex SQL Function: $CURRENT_ROW ====== | ====== Omnidex SQL Function: $CURRENT_ROW ====== | ||
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===== Description ===== | ===== Description ===== | ||
- | Returns the current row as an ascending number from starting with 1. | + | The $CURRENT_ROW function return the current row number for the result set. The first row returned from a SELECT statement is given a value of 1, and each successive row is incremented by one. This is done as the last step of a statement, and so $CURRENT_ROW can only be used as a select-item. It cannot be used in the WHERE, GROUP BY, ORDER BY or HAVING clauses. |
- | This number is assigned after all other clauses are processed. | + | The $CURRENT_ROW should not be confused with the $ROWID. The $ROWID comes from the underlying database, where $CURRENT_ROW is simply the current row number of the result set. |
- | This function may only be used as a select-item. It may NOT be used in a WHERE , GROUP BY, ORDER BY, or HAVING clause. | + | This function returns an INTEGER datatype. |
- | + | ||
- | The return data type is INTEGER. | + | |
===== Syntax ===== | ===== Syntax ===== | ||
- | $CURRENT_ROW | + | $CURRENT_ROW |
- | ===== Example ===== | + | |
- | ==== Example 1 ==== | + | |
- | select $current_row, company from customers | + | |
- | $CURRENT_ROW COMPANY | + | ===== Examples ===== |
- | ------------ ------------------------------------- | + | ==== Example 1: Column ==== |
+ | <code> | ||
+ | > select $current_row, name from individuals; | ||
- | 1 Dynamic Information Systems Corporation | + | $CURRENT_R NAME |
+ | ---------- -------------------------------------------------- | ||
+ | 1 MS. MARY LEWIS | ||
+ | 2 MRS. ALICE R TOLLIVER | ||
+ | 3 MR. SIDNEY K TOLLIVER | ||
+ | 4 MRS. JENNIFER J HOPKINS | ||
+ | 5 MR. CHARLIE HOPKINS | ||
+ | 6 MS. KIMBERLY BLUE | ||
+ | 7 KATHLEEN TUCKER</code> | ||
- | 2 The Bovaird Supply Company | + | ====== Additional Resources ====== |
- | 3 Graham Container Companies | + | See also: |
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