Figure 4: Execution plan accessing the SQL cursor cache, using the basic format The arguments accepted by DBMS_XPLAN.DISPLAY_CURSOR are: SQL ID (default null, means the last SQL statement executed in this session), child number (default 0), format, controls the amount of ...
Some examples of the use of DBMS_XPLAN to display PLAN_TABLE output are: SELECT PLAN_TABLE_OUTPUT FROM TABLE(DBMS_XPLAN.DISPLAY()); SELECT PLAN_TABLE_OUTPUT FROM TABLE(DBMS_XPLAN.DISPLAY('MY_PLAN_TABLE', 'st1','TYPICAL')); See Also: Oracle Database PL/SQL Packages and Types Reference...
(a) Describe the concept of a cursor. (b) How is it used in embedded SQL? Observe the HAPPY INSURANCE DATABASE: If a DBMS enforces a DELETE SET-TO-NULL option on the referential integrity constraint between CLIENT and AGENT in the HAPPY INSURAN...
Before we start we should talk about some terms first. Explain plan: A tool or function provided by the DBMS (Database Management System) that makes an execution plan
For example, if an application opens a cursor and fetches 1000 rows from the cursor one row at a time, there will be over 1000 separate entries in the trace file. TKPROF is a program that you invoke at the operating system command prompt in order to reformat the trace file into a ...
Which PL or SQL command activates a cursor? Describe the functions provided by a relational database that could be used to record courses taken by university students in order to manage scheduling and preparing transcripts. What function does a...
Figure 4: Execution plan accessing the SQL cursor cache, using the basic format The arguments accepted by DBMS_XPLAN.DISPLAY_CURSOR are: SQL ID (default null, means the last SQL statement executed in this session), child number (default 0), format, controls the amount of ...
Figure 4: Execution plan accessing the SQL cursor cache, using the basic format The arguments accepted by DBMS_XPLAN.DISPLAY_CURSOR are: SQL ID (default null, means the last SQL statement executed in this session), child number (default 0), format, controls the amount of...