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chill_notes/附件/2026/个人知识库/数据库/Cpu 占用过高.md
2026-04-21 17:41:25 +08:00

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```sql
SELECT TOP 10
```
total_worker_time/execution_count AS avg_cpu_cost, plan_handle,
execution_count,
(SELECT SUBSTRING(text, statement_start_offset/2 + 1,
(CASE WHEN statement_end_offset = -1
THEN LEN(CONVERT(nvarchar(max), text)) * 2
ELSE statement_end_offset
```sql
END - statement_start_offset)/2)
FROM sys.dm_exec_sql_text(sql_handle)) AS query_text
FROM sys.dm_exec_query_stats
```
ORDER BY [avg_cpu_cost] DESC