Webbin my application, it took about 200ms. After tracking down to the real function call, [code] wxLogMessage (wxString::Format (_T ("ExecuteUpdate1 is %d\n"), clock ())); int rc = sqlite3_step ( (sqlite3_stmt*) m_stmt); wxLogMessage (wxString::Format (_T ("ExecuteUpdate1 is %d\n"), clock ())); if (rc == SQLITE_DONE) { Webb20 okt. 2024 · I'd reorganize as followd. - Cache the results of your first query into an array, it's only 6 results. - Create two prepared statements, one for each query inside the loop. - Loop over your array of 6 results, and execute each prepared statement instead of parsing the query each time. By doing it this way, you should use 1 connection for the ...
How to Insert Multiple Rows in SQL - Database Star
Webb20 maj 2024 · 根据status信息对MySQL服务器进行优化 网上有很多的文章教怎么配置MySQL服务器,但考虑到服务器硬件配置的不同,具体应用的差别,那些文章的做法只能作为初步设置参考,我们需要根据自己的情况进行配置优化,好的做法是MySQL服务器稳定运行了一段时间后运行,根据服务器的"状态"进行优化。 Webb17 apr. 2024 · This article will try to give some guidance on how to speed up slow INSERT SQL queries. The following recommendations may help optimize your data loading operations: Remove existing indexes - Inserting data to a MySQL table will slow down once you add more and more indexes. Therefore, if you're loading data to a new table, it's best … birthday t shirts girls
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Webb12 apr. 2024 · Modernize SQL Server applications with a managed, always-up-to-date SQL instance in the cloud. Azure Database for MySQL ... Flexible Server, helping you identify and optimize slow-running queries to improve the overall performance of your database. With query performance insights, ... Webb5 nov. 2013 · Think 200ms vs 2ms. The query itself is a select, explain tells me that it uses my index. The engine is innodb, I already increased the innodb_buffer_pool_size, max_connections and the thread_cache_size. vmstat tells me that there is no paging. What could be the reason for sometimes slow and sometimes fast queries? mysql mysql-5.5 … Webbför 18 timmar sedan · The speed of each query decreases a lot due to this parallelization. If I run only one thread, so the queries run sequentially, it takes between 60 and 100ms / per query. If I work with 10 threads, then each individual query requires between 140 - 500ms. If I work with 30 threads, then each individual query takes between 500 - 900ms. birthday t shirts for men