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SymmetricDS length for type varchar cannot exceed N

so I'm trying to use symmetricDS for replicating java h2 database to postgres. I'm using the zip file simple configuration. Here is what happen. I followed the getting started guide, download the symmetricds, and try the demo, then I tried with my own configuration with some table in the trigger. But:
If I replicate the table without varchar field in h2 it works perfectly fine.
If I have a table that has varchar field in it, it crash during creating the table.
JdbcSqlTemplate - ERROR: length for type varchar cannot exceed 10485760
Position: 161. Failed to execute: CREATE TABLE "asset"(
"db_id" BIGINT NOT NULL DEFAULT nextval('"asset_db_id_seq"'),
"id" BIGINT NOT NULL,
"account_id" BIGINT NOT NULL,
"name" VARCHAR(2147483647) NOT NULL,
"description" VARCHAR(2147483647),
"quantity" BIGINT NOT NULL,
"decimals" SMALLINT NOT NULL,
"initial_quantity" BIGINT NOT NULL,
"height" INTEGER NOT NULL,
"latest" BOOLEAN DEFAULT 'TRUE' NOT NULL,
PRIMARY KEY ("db_id")
)
indeed a clear error saying the varchar should not exceed 255, but that's how the source database is, is there anyway to force any varchar to TEXT type? or are there any other way around this? or is this a bug in symmetricds has yet to be solved?
Thanks.

I managed to go way around this by creating the table on target database manually. Here is what I did before running bin/sym.
generate query for table I want to create using dbexport by bin/dbexport --engine corp-000 --compatible=postgres --no-data table_a table_b > samples/create_asset_and_trade.sql
modify the flaw in generated query file samples/create_asset_and_trade.sql. in my case it's the length of the varchar.
after fixing that, run the generated query to fill in the target database using dbimport. bin/dbimport --engine store-001 samples/create_asset_and_trade.sql.
running bin/sym should be okay now, it'll detect that the table is already created, and skip the table creation step.
This is not the ideal way, but it should work for now.

Column not found after update db

I'm new to java . i've two questions . i'm using flyway and h2 db i added two file sql one of them to create table with two columns like that
CREATE TABLE contacts (
id bigint auto_increment NOT NULL,
name varchar(128) NOT NULL,
PRIMARY KEY(id)
);
and the other is to alter new column like that
ALTER TABLE contacts
ADD COLUMN contacts Varchar(255);
1- i used flyway.migrate worked fine but i faced mismatch so i used flyway.repair() is that normal to use it every time ?
2- when i wrote statment sql for executing insert sql command like that
stmt.execute("INSERT INTO contacts(name,contacts) VALUES('ABC','ABC#yahoo.com')");
i got
Exception in thread "main" org.h2.jdbc.JdbcSQLException: Column "CONTACTS" not found; SQL statement:
INSERT INTO contacts(name,contacts) VALUES('ABC ','ABC#yahoo.com') [42122-173]

You need to add AFTER in your second sql file.
ALTER TABLE contacts
ADD COLUMN contacts Varchar(255) AFTER name;

Assign ID number automatically

strSQL = "INSERT INTO emp(NO, EMP_NAME, EMP_TEL)VALUES(088000, 'JIMMY', *****)";
stmt.executeUpdate(strSQL);
I have this statement to insert a new employee into the database.
What if I want the employee NO to be automatically generated by adding 1 to the previous employee NO? How can this be done in JSP?

While not JSP, a possible solution would be to create an auto generated incrementing column (known as an identity column) in the database. Importantly, this avoids the race condition that exists with a solution that retrieves the current maximum and increments it.
MySQL example:
create table emp (
emp_id integer not null auto_increment,
...
);
Apache Derby example:
create table emp (
emp_id integer not null generated always as identity,
...
);
MS SQL Server 2008 R2 example:
create table emp (
emp_id integer not null identity,
...
);
The INSERT statements do not include the emp_id column. See Statement.getGeneratedKeys() for obtaining generated id if required.

Depending of your DB... I give you a mysql example.
create table emp{
NO int unsigned auto_increment,
EMP_NAME varchar(30) not null,
...
}
insert into emp(EMP_NAME,...) values ("Jimmy", ...);
Now you can ask mysql the last inserted id with
LAST_INSERT_ID()

Yes of course, you can do this by setting "employee no" to be unique and A_I (auto_increament) in this column properties

Check database Schema where you are creating table emp with ID int NOT NULL AUTO_INCREMENT
Then update the schema strSQL = "INSERT INTO emp(EMP_NAME, EMP_TEL) VALUES('ABC_NAME', '321321')";
Though it is possible BUT we should not do any logical operation into JSP. Forward all input in Servlet and do there.

There are several way to do.
Some of databases like Oracle has features like sequence, which allows you to increment numbers sequently and operates as atomic.
Set the column (possibly primary key) to auto increment ( database option ), and do not specify that "NO" in your query. That way, the NO column you didn't add will be added by database automatically.
You can get max values from database table and add 1 for new NO, or you can save those latest value even in file, memcached, whatever you want. The problem of this #3 is, if you don't make program to be atomic between GET LATEST VALUE, ADD 1, CALL DATABASE INSERT QUERY, multiple query can have same NO to use. It's OK, however, if NO is primary key since only very first update/insert query will executed and others query will be failed due to primary key unique violation... but problematic in some cases.

You can use the AUTOINCREMENT option on the field NO on the database, or execute a query like SELECT MAX(NO) FROM emp
and get the max value

I think this will be going to solve your doubt in database and use this following query as:
CREATE TABLE:
CREATE TABLE `test` (
`id` INT(5) UNSIGNED NOT NULL AUTO_INCREMENT,
`emp_name` VARCHAR(50) NOT NULL,
`emp_tel` INT(5) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8
INSERT TABLE METHOD:1
INSERT INTO test
VALUES (0,jmail,1234567)OR(?,?,?);
INSERT TABLE METHOD:2
INSERT INTO test (id,emp_name,emp_tel)
VALUES (0,jmail,1234567);
If you had any doubt give me comment.
And if your using the sqlyog to use the shortcut.
if your wants this method like following as:
PreparedStatement ps = con.prepareStatement("INSERT INTO test(id,emp_name,emp_tel)
VALUES (0,jmail,1234567)");
ps.executeUpdate();
PreparedStatement ps = con.prepareStatement("INSERT INTO test(id,emp_name,emp_tel)
VALUES (?,?,?)");
ps.setString(1, id );
ps.setString(2, name);
ps.setString(3, tel);
ps.executeUpdate();

Java SQL simple update syntax issue

I have a table named books with bookID, bookName, count , orderCount
i'd like to write an sql query that will update all books.orderCount to books.orderCount+1.
How shall i do that using executeQuery("UPDATE books...."); ?
I'm having troubles with the syntax.
I've tried to search info on the net however most articles are about INSERT or DELETE commands and the only article that was related suggested to retrieve orderCount to Java, update it and then write it back to SQL. if possible i prefer to avoid it as it may cause serious problems (Locks on records are not needed for this task so i can not use them to avoid problems)

this should be pretty straight forward,
UPDATE books
SET orderCount = orderCount + 1

If it's about a primary key:
Also, you can AUTO INCREMENT.
CREATE TABLE Persons
(
P_Id int NOT NULL AUTO_INCREMENT,
LastName varchar(255) NOT NULL,
FirstName varchar(255),
Address varchar(255),
City varchar(255),
PRIMARY KEY (P_Id)
)
To let the AUTO_INCREMENT sequence start with another value, use the following SQL statement:
ALTER TABLE Persons AUTO_INCREMENT=100
To insert a new record into the "Persons" table, we will not have to specify a value for the "P_Id" column (a unique value will be added automatically):
INSERT INTO Persons (FirstName,LastName)
VALUES ('Lars','Monsen')

com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '' for column 'Date_Of_Birth' at row 1

I'm trying to update the personal detail of a user through a java panel.Panel has fields like user_id(autogenerated),name,date of birth.
problem is when i enter nothing to the date of birth field in java panel and then save it. It gives me the above mentioned error.
i tried to verify it by inserting null to the date of birth(Date datatype) field directly using the mysql database.There it gives no error.
Why is it not taking null string when i insert through java panel but is taking when insert directly using mysql.
CREATE TABLE `userpersonaldetail` (
`User_Id` int(10) unsigned NOT NULL auto_increment,
`Name` varchar(45) default NULL,
`Date_Of_Birth` date default NULL,
`Address` varchar(300) default NULL,
`Phone` varchar(20) default NULL,
`Mobile` varchar(20) default NULL,
`Email` varchar(50) default NULL,
PRIMARY KEY (`User_Id`),
CONSTRAINT `FK_userpersonaldetail_1` FOREIGN KEY (`User_Id`) REFERENCES `usermaster` (`User_Id`)
)
And the portion of the code where exception occurs is:
try
{
con=(Connection) DBConnection.getConnection();
pstmt=(PreparedStatement) con.prepareStatement("Update userpersonaldetail set "+
"name=?,date_of_birth=?,address=?,phone=?,mobile=?,email=? where user_id=?");
pstmt.setInt(7,perBean.getUserId());
pstmt.setString(1,perBean.getName());
pstmt.setString(2,perBean.getDateOfBirth());
pstmt.setString(3,perBean.getAddress());
pstmt.setString(4,perBean.getPhone());
pstmt.setString(5,perBean.getMobile());
pstmt.setString(6,perBean.getEmail());
int i=pstmt.executeUpdate();
}
here perBean is the javaBean which retrieves values from the gui.In one of the test case i kept the date_of_birth text box null which is giving error while storing in DB.

My initial guess would be the field has been defined as 'NOT NULL' which means it will force you to enter a value...
If you were to do a mysql dump of the table (or view it in some tool) you'll probably find it defined such as:
`someDT` datetime NOT NULL

I replaced older version of my-sql-connector jar (to be found in lib folder of the server) with the latest. That solved my problem.

Ahh, i see now, you can't insert '' as a date. you will need to pass a date.

If an attribute does not have a value but you have it mentioned in the column list, forcing you to give something there, you need to use
statement.setNull(index, datatype)
to it. Setting to "" is not the same thing as setting to null.