มีผู้ดำรงตำแหน่งจำนวนเท่าใดที่เป็นผลมาจาก sanford bishop (d) 57% joseph mccormick (r) 43%?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many incumbents were the result of sanford bishop (d) 57% joseph mccormick (r) 43%?It is not neccessary to use all the tables.
 table_29251:  "District" [ text]  "Incumbent" [ text]  "Party" [ text]  "Elected" [ real]  "Status" [ text]  "Result" [ text] 
SELECT COUNT("Incumbent") FROM table_29251 WHERE "Result" = 'Sanford Bishop (D) 57% Joseph McCormick (R) 43%'