—————————— ———- —– ———-X$kqfta 4294950912 TABLE 0X$kqfvi 4294950913 TABLE 1Gv$process 4294951256 VIEW 65537V$process 4294950917 VIEW 65537Gv$bgprocess 4294951257 VIEW 65537.............................................From above you can see that gv$ and v$ are views, x$ is a table. What is the relationship between them? Get the following information from another view v$fixed_view_definition (for example, v$fixed_table):
Query initialization parameters A lot of ways, such as show PARAMETER, or query V$parameter, here a brief summary.
This article describes the necessity of gv$spparameter parameters.
The previous article describes the V$spparameter parameter and also explains the difference between the information in the V$spparameter view and the Gv$parameter view.
In fact, there is still a problem here, is whether the
Query initialization parameters A lot of ways, such as show PARAMETER, or query V$parameter, here a brief summary.
This article describes the difference between the V$spparameter view and the Gv$parameter view.
The previous article describes the difference between V$system_parameter and V$parameter views, which focuses on queries that initialize parameters in a RAC environment.
As already mentioned, using the show parameter query to see the initial
The relationship between v$, gv$, x$, v_$, and gv_$gv$: Global view, for multiple instance environments.v$: A view for an instance.x$: Is the data source for the gv$ view, Oracle internal table.gv_$: a synonym for gv$.v_$: a synonym for v$.We can use the V$fixed_view_definition view to query the definition of v$ and
I haven't written the gridview Event code for a long time. I just wrote a rowcommand event and the following error occurs:
The GridView 'gv 'fired event RowEditing which wasn' t handled.Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System. Web. HttpException: The GridView '
EVENT for a20col syntax for a10col syntax for a15col p_name for a15col p_value for a15col addr new_value addrcol SQL _id new_value limit addr FROM gv $ process c WHERE c. spid = ospid; select. sid | ',' |. SERIAL # sid_serial,. SQL _ID | ',' |. SQL _child_number SQL _id_nu
are different so its resource consumption must be different. At this point, there will be two identical SQL statistics in V$sql, and in V$sqlarea, the same 2 pointers will be merged, the number of executions, disk_reads, buffer_gets and other statistics will accumulate (sum), The Version_count will be shown as 2, which is the V$sqlarea aggregation effect.There are no statistics in v$sqltext , but the compl
To create a database:1 CREATE DATABASETest--The name of the database to be created2 on PRIMARY3 (4 --specific description of the database file5NAME='Test_data',--logical name of the master data file6FILENAME='E:\project\Test_data.mdf',--physical name of the master data file7SIZE=5MB,--Initial size of master data file8MAXSIZE=100MB,--maximum growth of the master data file9FileGrowth= the% --growth rate of master data filesTen ) One LOG on A ( - --the specific
Scope=both;1.real-time SQL monitoring mainly contains the following aspects:(1). SQL Plan monitoring real-time SQL monitoring also contains statistics that monitor each step of the execution plan. Can be viewed through v$sql_plan_monitor. The Save cycle for statistics is similar to V$sql_monitor. There are multiple entry for a
Sql.sql_text Sql_text,T.used_urec Records,T.used_ublk Blocks,(T.USED_UBLK * 8192/1024) KbytesFrom V$transaction T, v$session S, v$sql sqlwhere t.addr = S.taddrand s.sql_id = sql.sql_idORDER BY t.used_ublk Desc;2. While stored procedures run SQL (only through the AWR report to see SQL_ID), it is also not possible to do sql-monitor. To run 1 of the results, it is
Java. util. Date and Java. SQL. Date, java. SQL. Time, java. SQL. Timestamp interchange, java. SQL. timestamp
1. SQL time type to util time type
Principle: java. SQL. date, java. SQL. t
Tags: implementation mechanism originally page organizes tables based on free article content index ClustFollowing the book on SQL tuning (SQL tuning or SQL optimization) in the essentials of high-performance SQL tuning and case resolution, we talk today about one of the most important core mechanisms of
SQL Execution time, SQL Execution
Enable SQL Execution time statisticsSet timing on;
Check whether SQL statements with long execution time exist.Select a. sid, B. SQL _textFrom v $ session a, v $ sqlarea BWhere a. SQL _hash_va
Tags: and fast speaking tuning market buffer way a completely"High-performance SQL Tuning essentials and Case Resolution" a book has been launched, many enthusiastic readers on the contents of the book and some of the specific questions raised questions, because of the numerous readers plus my daily work busy, here on the SQL tuning learning to discuss and a unified answer to the hot issues.First, let's tal
WHERE view_name like ' index% '; SELECT count (1) from Dba_tables;SELECT count (1) from All_tables;SELECT count (1) from User_tables; --Most of the v$/gv$ begins with the alias of the v_$/gv_$ table.SELECT * from dba_synonyms WHERE synonym_name like ' v$% ';SELECT * from dba_synonyms WHERE synonym_name like ' gv$% '; --x$ no corresponding x_$SELECT * from dba_synonyms WHERE synonym_name like ' x$% '; --Th
35. use SQL query analyzer and SQL profilerUse SQL query AnalyzerUse SQL profilerOptimize T-SQL statementSummaryIn this chapter, we will continue with the description of the pre-stored procedures in Chapter 21st. This chapter describes how to use
13. T-SQL and SQL query AnalyzerWhat is SQL?What is T-SQL?Introduce new features of T-SQLHow to Use T-SQLSummaryIn this chapter, we will introduce some basic concepts about the Structured Query Language What is SQL? SQL is a datab
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