Hi everyone!
I am working with Delphi v7 and MS SQLServer.
I am trying to insert data in a table with a SQL sentence. Some of the
fields of my table are type char or varchar, and they can have null
values.
¿What do i have to write in the SQL sentence to insert a null value in
those fields?
I tried with '', an empty String, but it doesnt work, the tables
stores an empty String (logical :-)).
In the SQLServer GUI you have to press CTRL + 0 to insert a NULL
value, but how can i tell this to the SQLServer through a SQL
Sentence?
Well, thank you very much. 2 23043
On 29 Jul 2004 04:15:15 -0700, schumacker wrote: Hi everyone! I am working with Delphi v7 and MS SQLServer. I am trying to insert data in a table with a SQL sentence. Some of the fields of my table are type char or varchar, and they can have null values. ¿What do i have to write in the SQL sentence to insert a null value in those fields? I tried with '', an empty String, but it doesnt work, the tables stores an empty String (logical :-)). In the SQLServer GUI you have to press CTRL + 0 to insert a NULL value, but how can i tell this to the SQLServer through a SQL Sentence?
Well, thank you very much.
Hi schumacker,
INSERT INTO MyTable (Col1, Col2, Col3)
VALUES (1, NULL, 3)
or
INSERT INTO MyTable (Col1, Col2, Col3)
SELECT 1, NULL, 3
Best, Hugo
--
(Remove _NO_ and _SPAM_ to get my e-mail address)
Given:
create table foo
(col1 char(1) not null,
col2 char(1) null)
you can insert nulls to col2 by either explicitly specifying a null for the
content:
insert foo (col1, col2) values ('a',null)
or by skipping it in the column list and SQL Server will automatically
insert null:
insert foo (col1) values ('b')
Check it:
select * from foo
outputs:
col1 col2
---- ----
a NULL
b NULL
"schumacker" <mi**********@hotmail.com> wrote in message
news:e1*************************@posting.google.co m... Hi everyone! I am working with Delphi v7 and MS SQLServer. I am trying to insert data in a table with a SQL sentence. Some of the fields of my table are type char or varchar, and they can have null values. ¿What do i have to write in the SQL sentence to insert a null value in those fields? I tried with '', an empty String, but it doesnt work, the tables stores an empty String (logical :-)). In the SQLServer GUI you have to press CTRL + 0 to insert a NULL value, but how can i tell this to the SQLServer through a SQL Sentence?
Well, thank you very much. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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