oracle sql tuning advisor

How to use STA (SQL tuning advisor), tuningadvisor1. manually generate SQL tuning advisor1. SQL text format:DECLAREMy_task_name VARCHAR2 (30 );My_sqltext CLOB;BEGINMy_sqltext: = 'select * FROM DBA_SEGMENTS where owner = ''clic' AN

Tags: disco net text http speed data start time NTS database applicationOriginal: SQL Performance Detection Tool: SQL Server Profiler and Optimization tool: Database Engine Tuning Advisor I. Summary of TOOLS? database application system performance is low, it needs to be optimized,?? If you do not know where the proble

Some time ago, I had a performance problem with my website, and sometimes the page was very slow to open. It would take more than 10 seconds. I tried a lot of methods, including cache, disable viewstate, and Disable debug mode. The improvements were not obvious. Later, I ran into SQL Server Profiler to check the cause: a slow query dragged down the entire page. Later, the query was optimized, but not many improvements were made. Finally, an index i

Tags: file http img Local image HTTPS student engine MSSThe recent project to do thousands of students to face recognition record (currently about 630000 lines) query the last record, it is conceivable that the performance of this piece is a problem. As a shen, get to SQL Server Profiler and Database Engine Tuning Advisor These two jobs are QI.Start to install fo

SAA-SQL access advisor (oracle 11.2 and later), saa-sqladvisor I recently used SAA and found that many blogs on the Internet actually have problems using it in subsequent versions after oracle 11.2, Either the version change syntax is changed or incomplete. Take some time to list the use of the new version. **********

VARCHAR2);ParametersLocation:specifies The directory that would contain the new file,You must use the directory alias as defined by the CREATE directory statement,The Advisor would translate the alias into the actual directory location.Filename:specifies the output file to receive the script commands,The filename can only contain the name and an optional file type of the form.**********************/Connect/as SYSDBACREATE or replace DIRECTORY advisor

Tags: optimizer int ica parameter Viso mode recommend limited statThe SQL Access Advisor makes suggestions about indexes and materialized views which might improve system performance. This article describes how to use the SQL Access Advisor in Oracle 10g. Enterpris

Original: Database Engine Tuning AdvisorSQL Server provides a tool called Database Engine Tuning Advisor. This tool helps to confirm an optimal set of indexes for a given workload without requiring an in-depth understanding of the database structure or the internal structure of SQL Server. It can also suggest

Oracle tuning uses related SQL, oracle tuning related SQL Select * from v $ session where username is not null;Select username, count (username) from v $ session where username is not null group by username;Select count (*) from v

Label:You find, the execution time of reports in your DatawarehouseApplication is significantly high. You suspect the lack of indexes toBeing the reason for the degradation in performance. which advisory CompOnent would you refer to, in order to determine the appropriate indexEs?A. Memory AdvisorB. Segment AdvisorC. SQL Access AdvisorD. Automatic Workload Repository (AWR)E. Automatic Database Diagnostic Monitor (ADDM)Answer:cYou find that the executio

Label:SQL Server provides a tool called Database Engine Tuning Advisor. This tool helps to confirm an optimal set of indexes for a given workload without requiring an in-depth understanding of the database structure or the internal structure of SQL Server. It can also suggest tuning options for a small subset of proble

Tags: Delete existing image direct Analysis window adjustment based on aggregationSQL Server provides a tool called Database Engine Tuning Advisor. This tool helps to confirm an optimal set of indexes for a given workload without requiring an in-depth understanding of the database structure or the internal structure of SQL Server. It can also suggest

dedicated data buffers (keep buffer cache,nk buffer cache) are available for these tables. After Oracle 8 small tables can be forcibly cached to the keep pool. Using the best index Oracle Access objects sometimes have more than one index selection. Therefore, you should check each index on the current query object to ensure that Oracle uses the best ind

table in my database. Its fields include about rows of data. Here I did not create an index for the info field. Create an SQL statement to simulate the actual query. In this example, we use a simple query statement. Use [zhuyitestdatabase2] -- Remember to add the database with useSelect * from orders where info And saved as a. SQL file (in actual use, a query may be more complex) Start Optimizat

Label:Original: Database Engine Tuning AdvisorDatabase performance is largely dependent on whether the table has a suitable index. However, workloads and data change at any time, and existing indexes may not be entirely appropriate and may require a new index.However, it is very difficult to decide on an index because it can have a negative effect on other queries or other operations because it promotes a query.SQL Server provides the Database Engine

one index option. Therefore, you should check each index on the current query object to ensure that Oracle uses the best index.Materialized aggregation operations are calculated in a static tableSQL Access advisor, one of the 10 Gb features of Oracle, provides recommendations for indexing and materialized views. Materialized views can be used to pre-connect tabl

Database performance depends to a large extent on whether there is an appropriate index on the table. But workloads and data change at any time, and existing indexes may not be entirely appropriate, and new indexes may be required. However, it is very difficult to determine the index, because it can be promoted to a query, but it will have a negative effect on other queries or other operations. SQL Server provides the Database Engine

The SQL Tuning toolset (SQL Tuning set,sts) is an integral part of the Oracle 10g SQL Tuning Advisor feature. Each

Label:You want to use the SQL Tuning Advisor to generate recommendations for badly written SQL statements in your development environment. WHich Three sources can you select for the advisor to analyze? (ChooseThree.)A. Top SQLB. SnapshotsC.