WHILE(@@FETCH_STATUS=0)-- Loop through all tables in the databaseBEGININSERT#RESULTEXECUTEA_Search_StringInGivenTable@SearchString,@Table_Schema,@Table_Name;FETCHcurAllTablesINTO@Table_Schema,@Table_Name;END;-- whileCLOSEcurAllTables;DEALLOCATEcurAllTables;-- Return resultsSELECT*FROM#RESULTORDERB...
Loop through Query Results and Send Dynamic Content mail from DB Mail Loop through string value t-sql loop through temp table loop through the folder and load all the files into a sql table Looping Cursor through columns of a Row Looping through column names and make alias names using CURSOR...
<query_hint>::={ {HASH|ORDER}GROUP| {CONCAT|HASH|MERGE}UNION| {LOOP|MERGE|HASH}JOIN|DISABLE_OPTIMIZED_PLAN_FORCING|EXPANDVIEWS|FAST<integer_value>|FORCEORDER| {FORCE|DISABLE}EXTERNALPUSHDOWN| {FORCE|DISABLE}SCALEOUTEXECUTION|IGNORE_NONCLUSTERED_COLUMNSTORE_INDEX|KEEPPLAN|KEEPFIXEDPLAN|MAX_GRANT_PE...
通过引入bulk行集提供程序(bulk rowset provider),对从文件中加载数据的支持也得到加强, 这个新的提供程序允许你使用bulk引擎高效地将文件数据加载为行集,sqlserver6.5的时候已经有bulk程序!! 通过使用max说明符,varchar,nvarchar,varbinary,sqlserver存储这些值可以达到lob支持的最大容量,即2GB F F SQLSERVER提供了max列...
PostgreSQL has PL/pgSQL cursors that you can use to iterate business logic on rows read from the database. They can encapsulate the query and read the query results a few rows at a time. All access to cursors in PL/pgSQL is performed through cursor variabl...
Then, the external query (the non-CTE query) returns the results by querying the same CTE. This logic behaves more like a nested loop, and actually fails to move down branches of the tree like a recursive program. Otherwise line 19 would be line 14 in the output. You could write ...
In studying the lock acquired and released events for the update statement I found that it was only a handful. So again, why the large CPU burn? - The problem was the update was inside a cursor loop that executed millions of times and all of this was under a single...
The “Numbers” or “Tally” Table: What it is and how it replaces a loop, which is also by SQL MVP Jeff Moden Splitting Strings Based on Patterns, which contains PatternSplitCM – another must have high-performing, utility FUNCTION for your SQL tool box that uses a Tally table to work...
Now you’re ready to start learning how to write high-performance T-SQL code, because now you have a tool that is essential to proving that you’re writing queries that are the best that they can be! Follow me on Twitter:@DwainCSQL ...
In the real customer scenario that I was looking at, the table involved was accessed using a nested loop join, for a total of 13 million seeks. And these 13 million were repeated again for the second usage of the subquery. My attempt to rewrite the query was to use a LEFT OUTER JOIN...