Create index for combined columns : Create Index « Index « Oracle PL/SQL Tutorial






SQL>
SQL> create table emp(
  2           emp_id            integer         primary key
  3          ,lastname               varchar2(20)    not null
  4          ,firstname              varchar2(15)    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 index fullname on emp(lastname, firstname);

Index created.

SQL>
SQL>
SQL> drop table emp;

Table dropped.

SQL>
SQL>








9.1.Create Index
9.1.1.Creating an Index
9.1.2.Enforce uniqueness of values in a column using a unique index
9.1.3.Create combined-column index
9.1.4.Create a composite index on multiple columns
9.1.5.Creating a Function-Based Index
9.1.6.Create index based on cluster
9.1.7.Creates an index on the new added column
9.1.8.Create a fully indexed table named myCode
9.1.9.indextype is ctxsys.context
9.1.10.Create index for upper case last name
9.1.11.Create index along with the column definition
9.1.12.Create index for combined columns
9.1.13.Create unique index and check it in user_ind_columns and user_cons_columns
9.1.14.Demonstrate a bitmap join index.
9.1.15.create unique index with case ... when statement
9.1.16.Create Non-Unique index
9.1.17.autotrace ctxsys.context index
9.1.18.Create index with tablespace