executemany with select
От | Damon Fasching |
---|---|
Тема | executemany with select |
Дата | |
Msg-id | Pine.SOL.3.96.1020304190531.18973F-100000@design.lbl.gov обсуждение исходный текст |
Список | pgsql-novice |
Hi, If executemany(queryString, sequence) is used with a SELECT query, as in the example below, it seems that the cursor retains only the data from the last member of sequence. Can someone verify this? No big deal, just trying to get my usage correct. Thanks, Damon ## =================================================================== import psycopg conn = psycopg.connect('testdb') curs = conn.cursor() curs.execute("CREATE TABLE testtb (key int4, data text)") s = ((0, 'row1'), (1, 'row2')) curs.executemany("INSERT INTO testtb VALUES (%d, %s)", s) keys = ((0,), (1,)) curs.executemany("SELECT name FROM testtb WHERE key = %d", keys) rows = curs.fetchall() for row in rows: print row, "\n" ## ================================================================== produces the output >>> ('row2',) --------- May the lights in The Land of Plenty shine on the Truth some day L Cohen
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