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Categories / Oracle PLSQL / Index

 

Create unique index and check it in user_ind_columns and user_cons_columns

SQL> SQL> set echo off SQL> create table emp(   2           emp_id            integer     primary key   3          ,lastname               varchar2(20)    constraint lastname_create_nn not null   4          ,firstname              varchar2(15)    constraint firstname_create_nn not null   5          ,midinit                varchar2(1)   6          ,street                 varchar2(30)   7          ,city                   varchar2(20)   8          ,state                  varchar2(2)   9          ,zip                    varchar2(5)  10          ,shortZipCode           varchar2(4)  11          ,area_code              varchar2(3)  12          ,phone                  varchar2(8)  13          ,company_name           varchar2(50)); Table created. SQL> SQL> create unique index pk_idx on emp (emp_id); SQL> SQL> select index_name, table_name, column_name from user_ind_columns where table_name = 'EMP'; SQL> SQL> select constraint_name, table_name, column_name from user_cons_columns where table_name = 'EMP'; SQL> SQL> SQL> drop table emp cascade constraints; Table dropped. SQL>