• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 407
  • Last Modified:

plsql - table acces full

hdhgds,

Query 1
SELECT TC.OBJID,
       TC.PHONE,
       TC.X_CONTACT_ADD2ADDRESS,
       TC.S_LAST_NAME,
       TC.S_FIRST_NAME,
       TC.X_CONTACT_STATUS,
       TC.X_DOC_TYPE,
       X_DOC_NUM,
       trim(SUBSTR(TS.X_CATEGORY_CUSTOMER, 1, 8))
FROM SA.TABLE_CONTACT TC, SA.TABLE_CONTACT_ROLE CR, TABLE_SITE TS
WHERE CR.CONTACT_ROLE2CONTACT = TC.OBJID
   AND CR.CONTACT_ROLE2SITE = TS.OBJID
   AND TC.S_FIRST_NAME LIKE 'JOHAN%'
   AND TC.S_LAST_NAME LIKE 'TOLENTINO%'
   AND trim(SUBSTR(TS.X_CATEGORY_CUSTOMER, 1, 8)) = 'Postpago'

Open in new window

see imagen 1

Query 2
SELECT TC.OBJID,
       TC.PHONE,
       TC.X_CONTACT_ADD2ADDRESS,
       TC.S_LAST_NAME,
       TC.S_FIRST_NAME,
       TC.X_CONTACT_STATUS,
       TC.X_DOC_TYPE,
       X_DOC_NUM,
       trim(SUBSTR(TS.X_CATEGORY_CUSTOMER, 1, 8))
  FROM SA.TABLE_CONTACT TC, SA.TABLE_CONTACT_ROLE CR, TABLE_SITE TS
WHERE CR.CONTACT_ROLE2CONTACT = TC.OBJID
   AND CR.CONTACT_ROLE2SITE = TS.OBJID
  AND TRIM(RTRIM(TC.S_FIRST_NAME)) = 'JOHAN STIVE'
   AND TRIM(RTRIM(TC.S_LAST_NAME)) = 'TOLENTINO RAMIREZ'
   AND trim(SUBSTR(TS.X_CATEGORY_CUSTOMER, 1, 8)) = 'Postpago'

Open in new window

1. Searches should be accurate so as not LIKE was used,
2. Also indicates that there are blanks so we are using in the development environment TRIM, RTRIM, LTRIM in the database for S_FIRST_NAME and S_LAST_NAME column, however analyzing execution plans shows a TABLE ACCESS FULL, there any other way?
image01.jpg
image02.jpg
0
enrique_aeo
Asked:
enrique_aeo
1 Solution
 
slightwv (䄆 Netminder) Commented:
Best option is to fix your data and apps to not allow leading or trailing spaces.

If you cannot fix the apps a simple database trigger to trim the columns on insert or update would work.

Functions on an indexed column negate the ability for Oracle to use the index.

If you MUST use functions around the column, create a function-based index on the column.

http://docs.oracle.com/cd/E11882_01/appdev.112/e10471/adfns_indexes.htm#ADFNS00505

LTRIM(RTRIM('   hello   '))  is the same as TRIM('   hello   ')

A like where the wildcard is on the right and you have a decent number of characters on the left, an index can be used when one is available.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now