auto-increment

I thought this would be simple, but I can't seem to use AUTO_INCREMENT in my db2 database. I did some searching and people seem to be using "Generated by Default", but this doesn't work for me. If it helps, here's the table I want to create with the sid being auto incremented. create table student( sid integer NOT NULL <auto increment?> sname varchar(30), PRIMARY KEY (sid) ); Any pointers are appreciated. You're looking for is called an IDENTITY column: create table student ( sid integer not null GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1) ,sname varchar(30) ,PRIMARY KEY (sid) )

In MS Sql Server is easy create autoincrement fields. In my systems I stopped to use autoincrement fields for primary keys, and now I use Guid's. It was awesome, I've got a lot of advantages with that change. But in another non-primary key fields, I really was needing implement a "soft autoincrement". It's because my system is DB independent, so I create the autoinc value programatically in c#. I would like about solutions for autoincrement fields on databases without autoincrement, what the solution that your use and why? There is some Sql Ansi statement about this? and generating directly

I generate a SQLite table (in java): create table participants (ROWID INTEGER PRIMARY KEY AUTOINCREMENT, col1,col2); afterwards I try to add rows using the INSERT comand: insert into participants values ("bla","blub"); i get the error: java.sql.SQLException: table participants has 3 columns but 2 values were supplied I thought the row id would be generated automatically, but it seems that I miss anything. I tried another solution: PreparedStatement prep = conn.prepareStatement("insert into participants values (?,?,?);"); Integer n = null; prep.setInt(1,n); prep.setString(2, "bla"); prep

I need to insert a long row with 32 fields into a MySQL table. I'd like to do something like this: $sql="insert into tblname values (... 32 fields ...)"; Obviously it works fine if the fields are in the same order as the MySQL table fields. But, my table has an auto-increment id as it's first field. What I want is to fill in all table names but the first (id) one. Suggestions? Just use NULL as your first value, the autoincrement field will still work as expected: INSERT INTO tblname VALUES (NULL, ... 32 Fields ... ) Insert NULL into the auto-increment field. I recommend that unless this is a

I'm using php and mysql. I have a table with the id column set to auto increment as the primary key. I'm trying to add another column called sort_order. The sort_order column should auto increment when the row is inserted. Then a user will be able to change the sort_order value. But mysql does not allow auto increment for more than one column? What is the best way to auto increment the sort_order value? By popular Request, some more explanation. In administration area, the user will have a list of categories. Using javascript the user can drag the order they want the categories in. The script

In used query to create derby database table consist of primary column auto increment. CREATE TABLE \"table\" (\n" + " \"id\" INTEGER NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1) NOT NULL,\n" + " \"path\" VARCHAR(2000) DEFAULT NULL,\n" + " \"downloaded\" BOOLEAN DEFAULT false NOT NULL,\n" + " \"retried_times\" SMALLINT DEFAULT 0 NOT NULL,\n" + " \"name\" VARCHAR(40),\n" + " \"downloaded_date\" TIMESTAMP DEFAULT NULL,\n" + " PRIMARY KEY (\"id\")\n" When i insert a row through spring jdbc it increment by 100. Is there any error in query? This is due to pre-allocation of