Datatype of id columns NUMBER or STRING

hi,
plz tell me would it be beneficial to put the datatype of id columns as a string instead of number,,someone told me that string comparison is much faster than number column comparisons,,the reason he told me is tht comparison is done in binary form,,and to convert from string to binary is much lesser expensive than to convert from number to binary,,,the other group is saying that it has to convery string to number to binary,,,similarly number to binary,,so plz tell me what should be the datatype of id column let say values coming in it are like 001,002 etc...
regards
umar

I suggest you to do the workbench. I mean, take the execution plan of both number & string values and evaluate yourself.
Also, see the following link from the asktom site
http://asktom.oracle.com/pls/ask/f?p=4950:8:12430422674567031403::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:3051443177514,

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Using number datatype for date column

Hi
Is there a side effect for using "number" datatype for "date" column?
If so, what is the disadvantage?
Many thanks

Hi,
Ora_83 wrote:
Hi
Is there a side effect for using "number" datatype for "date" column?
If so, what is the disadvantage?Yes, there's a definite disadvantage.
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FROM       orders
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Depending on how you code dates as numbers, doing either one of the above may be just as easy, but doing the other will be very difficult. You'll waste a lot of effort converting the NUMBERs to real DATEs whenever you need to manipulate them.
Validation can be very difficult for NUMBERs, also.
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PL/SQL: ORA-00932: inconsistent datatypes: expected UDT got NUMBER

Hi all,
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2 /
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2 (
3 NUM_ID IN NUMBER
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LINE/COL ERROR
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ORA-20001: Unable to create form on table. ORA-02263: need to specify the datatype for this column.
Please someone help to solve this as i need to fix it urgently.

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ORDER BY timestamp column as a string

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user2269823 wrote:
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Column number in JTextArea?

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Hello
Just figure out how to do this. In case anyone
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If anyone has a much less cpu intensive solution,
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Thanks in advance
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Loading a large number of strings into memory quickly

Hello,
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I'd need to know more about what you're doing, but from what you're describing I think you should try to change your algorithm.
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Message was edited by: Brent Royal-Gordon

ORA-00932: inconsistent datatypes: expected UDT got NUMBER

Hello Friends...
i got this error while inserting record ..
ORA-00932: inconsistent datatypes: expected UDT got NUMBER
wht is that UDT ??
Thanks..

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P;

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Please suggest your on opinion this.
Thanks.

Not sure why you need cast in your statement if at all it is required then you need to do as below
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~ http://cool-bi.com

Error message - ORA-00932: inconsistent datatypes: expected CHAR got NUMBER

Here is my Report Query...
select
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and FINISH_TIME < :P1_END_DATE
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NON-LSF display 1 return..
Could any body please help me in truble shooting the error ? how do i convert datatype into number i dont have any privileges to make changes to the table...

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What is excel file's maximum column number limit?

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Concatenate multiple columns into one string

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Attachments:
MODBUS LIB Counter.vi ‏39 KB

Duplicate and answered - http://forums.ni.com/t5/LabVIEW/How-to-Plot-number-and-string-in-one-row-data-logger-counter-via/m-p...

Datatype of id columns NUMBER or STRING

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