Again, it really depends on your situation. I almost always use a cursor to loop through records...
SQL While loop and cursor are the most common approach to repeat a statement on condition-based or determined limits. Loop and cursor can be utilized in a circumstance to deal with row-based processing in T-SQL. We generally observe moderate execution of old made proced...
FOR employee_rec in c1 ---employee_rec直接用,不用提前定义 LOOP total_val := total_val + employee_rec.monthly_income; END LOOP; 当使用CURSOR FOR Loop时,不用我手工open cursor close cursor 应用: begin FOR emm IN ( SELECT ro_site, ns_site, product_line, wh_type FROM eis_hq_invhl_ma...
while_label: WHILE i<=50DO SET s= s +i; SET i= i +1; END WHILE while_label; SET num=s; END%%DELIMITER ; CALL test_while(@x); SELECT @x; 跳转语句之ITERATE语句 ITERATE语句:只能用在循环语句(LOOP、REPEAT和WHILE语句)内,表示重新开始循环,将执行顺序转到语句段开头处。如果你有面向过程的...
You are fetching the next record outside the WHILE loop using the above code. So the @@FETCH_STATUS is always 0 and the loop is executed infinitely. Place the above statement inside the WHILE loop. For more details refer below article....
VSCURSOR_DRAGSCRAP_SCROLL 12 Scroll while dragging from scrap cursor. VSCURSOR_HAND 13 Hand cursor. VSCURSOR_IBEAM 14 I-beam (text) cursor. VSCURSOR_ISEARCH 15 Search cursor. VSCURSOR_ISEARCH_UP 16 Search up cursor. VSCURSOR_MACRO_RECORD_NO 17 Macro not recording cursor. VSCURSOR_NO 18...
Can we optimise While Loop in sql server for large number of data? Can we pass parameters to the trigger?(Beginner) Can we RAISERROR inside MERGE Statement Can we select Bottom 1000 rows of a database Table from SSMS 2008 R2? Can we set value in a variable inside a select statement...
a DO loop. REPORT demo_select_cursor_2. DATA c TYPEcursor. DATA wa TYPE sbook.OPEN CURSOR c FOR SELECTcarrid connid fl bookid smoker FROM sbook ORDER BY carrid connid fldatesmoker book. FETCH NEXT CURSOR c INTO CORRESPONDING FIELDSOF wa. WHILE sy-subrc = 0. IF wa...
intuitive way to implement this is to extract the “VALUES” clause from the SQL string, callself.conn.format_sql_commandwith each parameter list, re-assemble the results into another SQL string, and then pass that to execute. Is there any alternative that doesn't involve parsing the SQL?
SQL Server Table variable inside a cursor loopThe scope of aTSQLvariable is from it's declaration...