analyze table compute statistics : Analyze « SQL Plus « Oracle PL / SQL






  1. Oracle PL / SQL
  2. SQL Plus
  3. Analyze

analyze table compute statistics

  
SQL>
SQL> set serveroutput on
SQL> set echo on
SQL>
SQL> create table t ( x int, y int NOT NULL );

Table created.

SQL> create unique index t_idx on t(x,y);

Index created.

SQL> insert into t values ( 1, 1 );

1 row created.

SQL> insert into t values ( NULL, 1 );

1 row created.

SQL> analyze table t compute statistics;

Table analyzed.

SQL> set autotrace on
SQL> drop table t;

Table dropped.


SQL>
SQL> set autotrace off
SQL> --








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