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- rem Analyze number of fetches and number of rows per cursor execution
-
- CREATE TABLE fetches_temp
- (session_index NUMBER,
- session_serial NUMBER,
- cursor_number NUMBER,
- sql_text_hash NUMBER,
- frequency NUMBER,
- rows_fetched NUMBER);
-
- INSERT INTO fetches_temp (session_index, session_serial,
- cursor_number, sql_text_hash)
- SELECT DISTINCT f.session_index_end, f.session_serial_end,
- f.cursor_number_end, f.sql_text_hash_end
- FROM v_192216243_f_5_e_10_7_3 f, epc_collection c
- WHERE c.collection_name = '&&cllctn' and
- c.collection_id = f.collection_number;
-
- UPDATE fetches_temp t
- SET frequency = (SELECT count(*)
- FROM v_192216243_f_5_e_10_7_3 f, epc_collection c
- WHERE t.session_index = f.session_index_end
- and t.session_serial = f.session_serial_end
- and t.cursor_number = f.cursor_number_end
- and c.collection_name = '&&cllctn'
- and c.collection_id = f.collection_number),
- rows_fetched = (SELECT sum(f.row_count_end)
- FROM v_192216243_f_5_e_10_7_3 f, epc_collection c
- WHERE t.session_index = f.session_index_end
- and t.session_serial = f.session_serial_end
- and t.cursor_number = f.cursor_number_end
- and c.collection_name = '&&cllctn'
- and c.collection_id = f.collection_number);
-
- SELECT min(frequency) "Min Fetches",
- max(frequency) "Max Fetches",
- avg(frequency) "Avg Fetches",
- min(rows_fetched) "Min Rows",
- max(rows_fetched) "Max Rows",
- avg(rows_fetched) "Avg Rows",
- count(*) "Cursors"
- FROM fetches_temp;
-
- SELECT s.sql_text "Stmts fetched single row"
- FROM v_192216243_f_5_e_7_7_3 s, fetches_temp t, collection c
- WHERE t.rows_fetched = 1
- and t.sql_text_hash = s.sql_text_hash
- and c.collection_name = '&&cllctn'
- and c.collection_id = s.collection_number;
-
- drop table fetches_temp;
-