මොඩියුල විශ්ලේෂණය SQL Server Waits. Tables රැසක් එකට එකතු කිරීම.

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Presentation transcript:

මොඩියුල විශ්ලේෂණය SQL Server Waits. Tables රැසක් එකට එකතු කිරීම. අනෙකුත් ඉඟි.

SQL Server Waits Architecture  Session    Task Scheduler Co-Operative Scheduling Logical CPU

SQL Server Waits Architecture Running Scheduler 1 Suspended Scheduler 1 55 Running 52 PAGEIOLATCH_SH Runnable Scheduler 1 54 CXPACKET 53 Runnable 60 LCK_M_S 56 Runnable 61 LCK_M_S 59 Runnable 52 Runnable Signal Wait

ප්‍රයෝජනවත් Wait ආකාර PAGEIOLATCH CXPACKET WRITELOG LCK_M_* PREEMPTIVE_*

Wait තොරතුරු පරික්ෂා කිරීම sys.dm_exec_requests sys.dm_os_waiting_tasks sys.dm_os_wait_stats

SQL Server wait DMVs

මන්දගාමී query

මන්දගාමී Query

Join Order

Join Order Permutations: (Customer -> Order) -> Product (Order -> Customer) -> Product Product -> (Customer-> Order) Product -> (Order -> Customer) Customer -> (Order -> Product) Customer -> (Product -> Order)

Join Order…

Optimizer එකට උදව් කරන්න..

Query ලිහිල් කරන්න

අනෙකුත් ඉඟි….

Queries Optimize සහ Troubleshoot කිරීම. සම්පිණ්ඩනය SQL Server Waits. Tables රැසක් එකට එකතු කිරීම. අනෙකුත් ඉඟි.

පාඨමාලා මාතෘකා Microsoft SQL Server Databases සැකසීම 01 | Tables සහ Views 06 | Queries Optimize සහ Troubleshoot කිරීම 02 | Indexes තේරුම් ගැනීම 03 |Stored Procedures සහ Functions භාවිතය 04 | Transactions කළමනාකරණය 05 | In-Memory Objects