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niharika1234
New User
Joined: 01 May 2006
Posts: 9
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Hi all,
My table one date field is declared to be as null..... when writing the code , during fetch the date i am getting SQLCODE -305I.E. null values cannot be assined to the field..... how to handle in the code?
thanks in advance |
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vicky10001
Warnings : 1
Active User
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Joined: 13 Jul 2005
Posts: 136
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Please Use below code like this
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FETCH-para1
EXEC SQL
FETCH CURSR01
INTO
 B-DATABASE-ROW-READ
B-ROW-READ-NULL.NUL-IND
END-EXEC. |
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shreevamsi
Active User
Joined: 23 Feb 2006
Posts: 305
Location: Hyderabad,India
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hi niharika1234,
What is the scenario that made you retrieve the NULL INDICATOR of a Variable in the CObol program.
NULL -Indicators are for tables to handle the NULL - condition.
I think u don't need to explicitly move the Indicator to the Field in cobol.
When you fetch a field to a variable......
EXEC SQL
FETCH CURSR01
INTO
DATABASE-VARIABLE :DATABASEVARIABLE-ID(null indicator)
,..........
END-EXEC.
~Vamsi |
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DavidatK
Active Member
Joined: 22 Nov 2005
Posts: 700
Location: Troy, Michigan USA
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Hi niharika1234,
There are a couple of things you can do to handle null values coming into your COBOL program.
As stated above, there is a ?null indicator? you can place on the host variable that will tell you if the column value is null or not.
It in the form of:
| Code: |
SELECT COLUMN_VAR,
:
INTO :HOST-VAR:HOST-NULL-IND,
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The HOST-NULL-IND must be defined as PIC S9(4) COMP.
If the column value IS NOT NULL, the value of HOST-NULL-IND = 0, if the column value IS NULL, the value of HOST-NULL-IND = -1.
Your program must be coded to look at this field and act appropriately.
Now, if you want the null value to default, there is another way to handle this.
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SELECT COALESCE (COLUMN_VAR, 0),
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INTO :HOST-VAR
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Assuming that COLUMN_VAR if declared as numeric, the COALESCE function returns the first NON NULL value it encounters in the argument list. In the case above, it would return 0 (zero).
Dave |
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