1. Periodically (eg once a day) run exec DBMS_STATS.FLUSH_DATABASE_MONITORING_INFO; DBMS_STATS.FLUSH_DATABASE_MONITORING_INFO will clean out redundant col_usage$ entries, and when you come to shutdown the datab
1. Periodically (eg once a day) run exec DBMS_STATS.FLUSH_DATABASE_MONITORING_INFO; DBMS_STATS.FLUSH_DATABASE_MONITORING_INFO will clean out redundant col_usage$ entries, and when you come to shutdown the database you should not have a huge number of entries left to clean up. 该文档指...
9.9.1 lock operations...220 9.9.2 cursor operations...
–You can hover the cursor over a sensitivity level to show information about all assets at the sensitivity level. –You can hover the cursor over an asset category to display the names and scan times of all its scanned assets in the adjacent dialog box. –You can select an asset to view...
cursor c1 is select sid,rawtohex(saddr) from v$session ; functionto_decimal (hex_str_in in varchar2) return number as hex_str varchar2(50) :=hex_str_in; resultnumber; hex_char number; begin if ( sga_word_size = 8 ) then
Data Modeler: Lets you display the Browser and Thumbnail Diagram panes of the Data Modeler in SQL Developer. DBMS Output: Displays the output of DBMS_OUTPUT package statements (see DBMS Output Pane). Debugger: Displays panes related to debugging (see Running and Debugging Functions and Procedures...
Cursor statistics (such as CPU times and IO times) and execution plan statistics (such as number of output rows, memory, and temporary space used) are updated close to real-time during statement execution. (Internally, this feature calls the DBMS_SQLTUNE.REPORT_SQL_MONITOR subprogram.) Monitor...
Let us learn the implementation of the PL/ SQL stored procedures with the help of some examples – Let us look at the example that demonstrates how the cursor can be used in PL/ SQL to retrieve the information about a particular entry in the table. Consider that we have a table called ...
cursor code is select pid, spid, substr(username,1,20) "USER" , substr(program,1,30) "Program", PGA_USED_MEM, PGA_ALLOC_MEM, PGA_FREEABLE_MEM, PGA_MAX_MEM from v$process where pga_alloc_mem= (select max(pga_alloc_mem) from v$process ...
Alternative of CURSOR in SQL to improve performance ? alternative query for in clause Alternative to Full Outer Join Alternative to Row_Number Query Alternative way STUFF for XML PATH ('') ? Am getting an error when i run this code Ambiguous Column Name An aggregate may not appear in the ...