CREATE FUNCTION [dbo].[ufn_CountString] ( @pInput VARCHAR(8000), @pSearchString VARCHAR(100) ) RETURNS INT BEGIN RETURN (LEN(@pInput) - LEN(REPLACE(@pInput, @pSearchString, ''))) / LEN(@pSearchString) END GO Description Counting the number of times a string exists in another strin...
The previous version of the Count Character Occurrence user-defined function is not case-sensitive. If we want to count the number of "t"'s in lower-case from the same string value above, it will give us a value of 2 instead of just a return value of 1 because it will count the fi...
SQL Server has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.重新编译执行计划根据数据库新状态的不同,数据库中的某些更改可能导致执行计划效率降低或无效。 SQL Server 将检测到使执行计划无效的...
174 Increases the SQL Server Database Engine plan cache bucket count from 40,009 to 160,001 on 64-bit systems. For more information, see KB3026083.Note: Ensure that you thoroughly test this option, before rolling it into a production environment.Scope: Global only. 176 Addresses errors whe...
可以使用 Oracle 自带的正则函数 regexp_count 和 regexp_substr 来实现,这种方法很简单,并且考虑了字符串以分隔符结尾的情况。但要注意的是,该方法中使用的正则函数 regexp_substr 在10g及以后的版本中执行都是比较顺利的,而regexp_count 函数则需要在11g及以后的版本中才能执行。因此这种方法适用于11g及以上版本...
COUNTRECOVERYMGR 仅供内部使用。 适用于:SQL Server 2012(11.x)及更高版本。 CREATE_DATINISERVICE 仅供内部使用。 适用于:SQL Server 2012(11.x)及更高版本。 CXCONSUMER 当使用者线程(父线程)等待生成者线程发送行时,与并行查询计划一起发生。 CXCONSUMER 等待是由从其生成者线程中耗尽行的 Exchange 迭代器引...
Count(*) with Partition by producing the wrong result. Count(Distinct): missing operator error? Counting Blank spaces between two words in string Counting Carriage returns Counting the '-' (Hyphens) in a string Country, State and City SQL Database Couple of questions on SQL Server 2008 - Beg...
occurrence A signed or unsigned integer that specifies the token to be returned. For example, if you specify 3 as a value for this parameter, the third token in the string is returned. Result Types DT_WSTR Remarks This function splits up the <character_expression> string into a set of ...
Applies To: SQL Server 2005 Summary: It is not uncommon to experience the occasional slow down of a SQL Server database. A poorly designed database or a system that is improperly configured for the workload are but several of many possible causes of this type of performance problem. Administ...
execution_count, dbid, objectid from sys.dm_exec_query_stats a cross apply sys.dm_exec_sql_text(sql_handle) as sql_text where plan_generation_num >1 order by plan_generation_num desc For additional information, seeBatch Compilation, Recompilation, and Plan Caching Issues in SQL Server 2005...