PL/SQL and Python scripts for the same function

    好長時間沒有更新了。。。最近工作中寫了一個procedure，功能和邏輯都很簡單。但是平時寫python習慣了，用pl/sql來寫還真是有點不習慣。這裏就把兩段script都貼在這裏，爲備以後需要參考。

 

python script:

 

# Program Name: upd_err_status_cd.py import cx_Oracle tb_nms = ['table1', 'table2', 'table3'...] conn = cx_Oracle.connect('username/passwd@instance') curs = conn.cursor() for tb_nm in tb_nms: sql = """select integration_id, changed_on_dt from x_srv_error_log_g where status_cd = 'N' and table_nm = '""" sql = sql + tb_nm + "'" curs.execute(sql) result = curs.fetchall() for row in result: integration_id = row[0] changed_on_dt = row[1] query = "select w_update_dt from " + tb_nm + " where integration_id = '" + integration_id +"""' and / to_number(to_char(sysdate,'yyyymmdd')) between effective_from_dt_wid and effective_to_dt_wid""" curs.execute(query) w_update_dt = curs.fetchone() w_update_dt = w_update_dt[0] if w_update_dt > changed_on_dt: upd_sql = """update tablename set status_cd = 'Y', changed_on_dt = sysdate where integration_id = '""" + integration_id upd_sql = upd_sql + "' and table_nm = '" + tb_nm + "'" curs.execute(upd_sql) conn.commit() curs.close() conn.close()

 

pl/sql:

 

CREATE OR REPLACE procedure upd_error_status_cd as TYPE table_name_array IS TABLE OF VARCHAR2(80) INDEX BY BINARY_INTEGER; table_names table_name_array; l_table_nm varchar2(50); l_integration_id varchar2(80); l_changed_on_dt date; l_w_update_dt date; v_sql varchar2(2000); cursor get_each_row is select table_nm, integration_id, changed_on_dt from x_srv_error_log_g_test where status_cd = 'N' and table_nm = l_table_nm; BEGIN table_names(1) := 'table1'; table_names(2) := 'table2'; table_names(3) := 'table3'; . . . FOR i IN 1..table_names.count LOOP l_table_nm :=table_names(i); open get_each_row; LOOP fetch get_each_row into l_table_nm, l_integration_id, l_changed_on_dt; exit when get_each_row%notfound; v_sql := 'select w_update_dt from '||l_table_nm||' where integration_id = '''||l_integration_id; v_sql := v_sql||''' and to_number(to_char(sysdate,''yyyymmdd'')) between effective_from_dt_wid and effective_to_dt_wid and rownum =1'; execute immediate v_sql into l_w_update_dt ; IF l_w_update_dt > l_changed_on_dt THEN update tablename set status_cd = 'Y', changed_on_dt = sysdate where table_nm =l_table_nm and integration_id = l_integration_id; END IF; commit; END LOOP; close get_each_row; END LOOP; END; /