Joanne, there are no bad questions, only bad answers.
Use sqlite3_bind_double and your timestamp will be of type double (a 64
bit FP number),
Joanne Pham wrote:
Hi John,
Thanks for the detail info.
I am still very new to SQLite3 and sorry for the question.
My application is used C++ to insert/select the data from this table. So if I
defined it as
create table mytable (
........
createDate REAL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY (remoteWXId)
);
Then I can use sqlite3_bind_real to bind the column but what is the datatype
that I should use in C++ code.Do you have any example code that work for C++ in
this case.
Sorry for the question.
Thanks,
JP
----- Original Message ----
From: John Stanton <[EMAIL PROTECTED]>
To: sqlite-users@sqlite.org
Sent: Monday, December 17, 2007 12:59:00 PM
Subject: Re: [sqlite] create table with datatype = DATE. SHould use as DATETIME
or INTEGER.
Sqlite stores a date and time as a REAL so instead of trusting to
manifest typing to make it a REAL your code will be easier to follow if
you declare it a REAL.
Here is a simple list of the date and time functions embedded in Sqlite
1. date( timestring, modifier, modifier, ...)
returns date as YYYY-MM-DD
2. time( timestring, modifier, modifier, ...)
returns time as HH:MM:SS
3. datetime( timestring, modifier, modifier, ...)
returns datetime as YYYY-MM-DD HH:MM:SS
4. julianday( timestring, modifier, modifier, ...)
returns julian day, which is a float-point number
counting the number of days since 4714 B.C.
5. strftime( format, timestring, modifier, modifier, ...)
returns a string in the desired format (like printf)
6. current_time
returns current time as HH:MM:SS
7. current_date
returns current date as YYYY-MM-DD
8. current_timestamp
returns current timestamp as YYYY-MM-DD HH:MM:SS
ttp://www.somacon.com/p370.php
Joanne Pham wrote:
Thanks John,
" If you make it a REAL instead of DATETIME your code will
be clearer."
So you meant that I should make my datatype as REAL instead of DATETIME.
Thanks,
Joanne
----- Original Message ----
From: John Stanton <[EMAIL PROTECTED]>
To: sqlite-users@sqlite.org
Sent: Monday, December 17, 2007 10:00:11 AM
Subject: Re: [sqlite] create table with datatype = DATE. SHould use as DATETIME
or INTEGER.
If you declared your date and time (timestamp) column DATETIME it will
be floating point and will store date and time in 8 bytes. Use the FP
bind function. If you make it a REAL instead of DATETIME your code will
be clearer.
Joanne Pham wrote:
Hi All,
I have two question regarding DATETIME column data type:
1 ) Should I store my COLUMN as INTEGER instead of DATETIME. Is it easier if this column type is INTEGER vs DATETIME then
do the conversion in the GUI code to convert from INTEGER TO DATETIME.
2) And if I store as DATETIME then What is the command to bind this column
type as DATETIME.
For the INTEGER the bind command is : sqlite3_bind_int but I don't know if the column is DATETIME
then what is the command to bind this column.
Thanks,
JP
----- Original Message ----
From: P Kishor <[EMAIL PROTECTED]>
To: sqlite-users@sqlite.org
Sent: Thursday, December 13, 2007 2:48:26 PM
Subject: Re: [sqlite] create table with datatype = DATE
CREATE TABLE test (.. createData DATETIME DEFAULT CURRENT_TIMESTAMP)
On 12/13/07, Joanne Pham <[EMAIL PROTECTED]> wrote:
Hi All,
I create the table as :
create table test (name varchar(30), createDate DATE default
DATETIME('NOW'));
but I got the error message. I want to have the default as now if it is not
specify.
Thanks in advance,
Joanne
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