CREATE TABLE table_18256 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

how many district with incumbent being lindy boggs
SELECT COUNT("District") FROM table_18256 WHERE "Incumbent" = 'Lindy Boggs'
SELECT COUNT("District") FROM "table_18256" WHERE "Incumbent" = 'Lindy Boggs'