Solution : https://service.sap.com/sap/support/notes/841758 (SAP Service marketplace login required)
Key words :
important transaction codes=========================== se30 - runtime analysis sm50 - work process overview stad - individual statistics - st05 - sql trace caution, business transaction show business transaction sums, identical sql statements return identical results, called fully 'qualified access'es, hard disk reloads data blocks, transaction se30 abap trace, unsuitable access strategy incorrect index, high response times occur sporadically, database reads identical data repeatedly, datamgmt&scalability' team monitors
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| 103212 | Bad performance during SD document update |