which memory is used by lookup and join
Answers were Sorted based on User's Feedback
Answer / kala
Join use the buffer memory and Lookup use the physical memory(RAM)
| Is This Answer Correct ? | 14 Yes | 1 No |
-->LOOK-UP runs based on physical memory(RAM).
While doing Look-Up, Data will be loaded into the Physical Memory(RAM) which faster and better for LOW Valume of data.
-->JOIN Uses the Buffer Memory(disc memory)
Buffer Memory(disc memory)--> this path is specified in the Configuration file and parameter name is: SCRATCH DISK path
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / raam chowdary
join is used in permanent memory and lookup is used in buffer(ram)
| Is This Answer Correct ? | 4 Yes | 2 No |
Answer / naren
join is use the disc memory,look up use the buffer memory(ram)
| Is This Answer Correct ? | 2 Yes | 2 No |
which is more expensive hash or modulus partitioning? when do you use modulus partitioning?
How to reverse the string using unix?
What is developer responsibilities in UAT (user acceptance testing and Post implementation phase?
Hi friends, I am new to datastage, i have one query in datastage any one you please give reply to my post. I have a workbook (excel sheet) named as eg: xxxx, in that i have two tables emp(eid, ename, salary, deptno) and dep(deptno, name, state). in my source i have ODBC enterprise stage read the emp table and dept table join the two table and write the dept no 10(eid,ename,salary,name,state) values in target(). Thanks, Badari
if the source file is CID,CCODE,CONNDATE,CREATEDBY 0000000224,1000,20060601,CURA 0000000224,2000,20050517,AFGA 0000000224,3000,20080601,TUNE 0000000225,1000,20020601,CURA 0000000225,2000,20050617,AFGA 0000000225,3000,20080601,TONE AND TARGET is oracle following are the validations cid loaded with unique records leading zeors has to be deleted while loading cid in target load only customer who got early connected to company conn_date should be loaded into oracle date format cid datatype is varchar2 in target conn_date is data datatype ccode is varchar2 0000000224,1000,20060601,CURA 0000000224,1000,20060601,CURA
Hi, what is use of Macros,functions and Routines..? At what situation you are used. If you know the answer please explain it. Thanks.
1. How many People are part of your Team? 2. Explain how you create jobs or flow of project? 3. Join Stage vs Lookup vs Merge Stage 4. Summation scenario based question - How you find sum of salary for a specific employee (Explain stages and flow of job)? 5. Explain Remove duplicates stage ? Can you do sort in this stage? 6. SQL Questions - Joins - Types, Difference between Join and Union 7. Unix Questions - How you run the Job, How you list all jobs in project 8. Explain Environmental Variables? 9. SQL Scenario - If you have 3 Identical record in a Table, Ex: 1, Ram, Xyz; 1, Ram, Xyz; 1, Ram, Xyz; Delete only 2 of the records and keep only 1 using the Delete query. How you will you do this?
how many types of remove the duplicate records?
1.How do u handle NULL in sequential stage. 2.Difference between switch stage and filter stage.
What is the difference between orabulk and bcp stages?
what is the differeces between hash and modulus partition methods
Wat is pre-load in Hashed file