有不同的方法可以用来检查程序的性能。据我了解,您可以像这样连接所有表:SELECT t11~orgeh t11~msty t11~mshort t12~position t13~job t14~job_grade t14~scheme INTO gt_my_combined_table FROM zgerpt_rnk_min as t11 JOIN hrp1001 as t12 ON t11~orgeh = t12~objid JOIN hrp1001 as t13 ON t12~position = t13~objid JOIN hrp9003 ON t13~job = t14~objid WHERE t12~otype = 'O' AND T12~sclas = 'S' AND T12~begda LE p_keydt AND T12~endda GE p_keydt AND T12~plvar ='01' AND T12~istat = '1' AND T12~objid ... 阅读更多