SQLite3 Integer Max Value
- Look at http://www.sqlite.org/datatype3.html Minimum is -(263) == -9223372036854775808 and maximum is 263 - 1 == 9223372036854775807
- I would think you should use a varchar
- http://www.sqlite.org/lang_attach.html
- http://www.sqlite.org/lang_createtable.html
- might be of help SQLite 'no such table' error
in general check out the sqlite documentation
Sqlite3 maximum primary key value
I've never seen that behavior with SQLite3. Edit your question, and paste the output of .schema your-table-name
. Also, make sure the problem isn't in your application code.
Declaring a column as integer in SQLite works differently than declaring a column as integer in a true SQL dbms. In SQLite3, any column declared INTEGER PRIMARY KEY
ought to accept any 64-bit, signed integer. 64-bit integers max go to 1.84467441 × 1019. (Your column should accept negative integers, too.)
INTEGER. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8
bytes depending on the magnitude of the value.
sqlite> create table t ( n integer primary key, s varchar(35));
sqlite> insert into t (s) values ('a');
sqlite> insert into t (s) values ('a');
sqlite> insert into t (s) values ('a');
sqlite> select * from t;
1|a
2|a
3|a
So, it automatically increments . . .
sqlite> insert into t values (2147483647, 'a');
sqlite> select * from t;
1|a
2|a
3|a
2147483647|a
And it accepts the maximum value of a 32-bit signed integer.
sqlite> insert into t (s) values ('a');
sqlite> insert into t (s) values ('a');
sqlite> insert into t (s) values ('a');
sqlite> select * from t;
1|a
2|a
3|a
2147483647|a
2147483648|a
2147483649|a
2147483650|a
And it increments past the maximum value of a 32-bit signed integer.
sqlite> insert into t values (8589934592, 'a');
sqlite> select * from t;
1|a
2|a
3|a
2147483647|a
2147483648|a
2147483649|a
2147483650|a
8589934592|a
It accepts values in the range of 233.
sqlite> insert into t (s) values ('a');
sqlite> select * from t;
1|a
2|a
3|a
2147483647|a
2147483648|a
2147483649|a
2147483650|a
8589934592|a
8589934593|a
And it continues to automatically increment.
Integer stored as String returning wrong MAX value Sqlite Android
When the stored data type is different from how you want to compare the values, you have to convert them:
SELECT MAX(CAST(donebottombar AS INT )) FROM customers;
SELECT MAX(CAST(donebottombar AS TEXT)) FROM customers;
SQLite integer size: individually sized or for the entire group
The sqlite database structure is different in the way it handles data types. Each field can have a different type...
Here is the documentation from sqlite:
Most SQL database engines use static typing. A datatype is associated with each column
in a table and only values of that particular datatype are allowed to be stored in that
column. SQLite relaxes this restriction by using manifest typing. In manifest typing, the
datatype is a property of the value itself, not of the column in which the value is
stored. SQLite thus allows the user to store any value of any datatype into any column
regardless of the declared type of that column. (There are some exceptions to this rule:
An INTEGER PRIMARY KEY column may only store integers. And SQLite attempts to coerce
values into the declared datatype of the column when it can.)
sqlite3 - MAX() function does not return the maximum value of a column
You are storing the value as a string rather than a number. Convert the value to a number for the max:
SELECT MAX(weighted_dead_length + 0)
FROM mazes_100k;
or:
SELECT MAX(CASt(weighted_dead_length as INTEGER) )
FROM mazes_100k;
Running out of INT datatype for PRIMARY KEY in SQLite
The limit to number of rows is 18,446,744,073,709,551,616 if you make use of negative values, beyond what most (any?) devices can store at 1 bytes per row (no row would be just 1 byte they would be more bytes).
For more details
Limits In SQLite - Maximum Number Of Rows In A Table
I try to resolve this by changing the datatype to BigInt but the navigator crashed
As for datatype that does not affect matters except when retrieving data, which is a subtle issue that can be got around by using implicit or explicit CASTing. The other except for datatype is if using INTEGER PRIMARY KEY (implicit or explicit but specifically INTEGER not INT or BIGINT) which makes the column a rowid alias and there can only store integer value. In all other columns except rowid and an alias of the rowid any type of value can be stored.
For more details Datatypes In SQLite Version 3
Please what is the best Approach of resolving this?
From SQLite perspective nothing, there is no issue.
How to select the max int value of a TEXT column in SQLite
SELECT MAX(CAST(name AS INT)) FROM mytable;
SQLite uses CAST(expr AS type-name) similar to MySQL
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