Embarcadero Db Optimizer Pro With Automated
Streamline tuning of SQL code on major DBMSs from one interface. Tune SQL like a pro with automated performance optimization suggestions. Tackle SQL queries with visual SQL tuning diagrams. Pinpoint problem SQL with database profiling of wait-time analysis.
Embarcadero Db Optimizer License Variations Of
To find the blocking session, use the top bytes of v$session.p2raw e.g. The top bytes of p2raw is the blocker 0x00001397 which when converted to decimal, is session Id 5015.Row Cache latch: row cache objects row cache lock Depends on which cache the lock is happening on :select : ash.session_id sid, ash.blocking_session bsid, nvl(o.object_name,to_char(CURRENT_OBJ#)) obj, o.object_type otype, CURRENT_FILE# filen, CURRENT_BLOCK# blockn, ash.SQL_ID, nvl(rc.name,to_char(ash.p3)) row_cache :from v$active_session_history ash, ( select cache#, parameter name from v$rowcache ) rc, all_objects o :where event='row cache lock' and rc.cache#(+)=ash.p1 and o.object_id (+)= ash.CURRENT_OBJ# and ash.session_state='WAITING' and ash. This will satisfy all license variations of DB Optimizer XE3 licenses. DownloadNot Sharing SQL Bind Variables Select * from dual where dummy = :var Cursor_Sharing Cursor_sharing = Force Oracle replaces variables with bind variables Defaults to ExactSelect plan_hash_value,count(plan_hash_value) from v$sql group by plan_hash_value, order by count(plan_hash_value)As you can see, 9 sessions were waiting for Session Id 0x1397, which was holding exclusive the Mutex with the Id 2700259466. The Ref Count is zero, as we would expect. The 9 sessions are waiting to execute the cursor protected by mutex Id 2700259466.
Visually Tackle SQL QueriesUnique in the industry, Visual SQL Tuning (VST) diagrams turn text-based SQL code into graphical SQL diagrams. Case Generation is used to generate all possible cases and to find the best alternative to a given SQL statement by including SQL rewrites and hint injections. Color-coded Index Analysis shows used, not used, or missing indexes and offers recommendations for optimum performance. Tune SQL Like a Pro!The SQL tuning wizard automatically suggests solutions and provides essential context in tuning SQL code.
Continuous profiling monitors an entire data source within a configurable span of time. Identify Performance Bottlenecks ImmediatelyDatabase profiling provides a graphical visualization of wait-time analysis, making the SQL that is causing poor database performance easy to pinpoint. The VST diagram displays indexes and constraints on tables and views with table statistics, as well as the joins used in a SQL statement such as Cartesian joins, implied Cartesian joins and many-to-many relationships.
Configure queries to run multiple times in parallel and see how they respond to your simulated production environment without the risk of actually testing in production. Simulate Production EnvironmentsLoad testing verifies performance of existing and alternative SQL queries against the database. Utilize reporting to allow sharing of information captured during the profiling process.
0 kommentar(er)
