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The DDL generator requires some additional elements which are related to DDL creation. The table below show all request elements. The priority is high (1) to low (5)

 No

element

priority

description

1

schema_name

5

This element, mapping's child element, defines the name of schema using in database

2

field's size

1

Define the size of field. he maximum display width for integer types. For floating-point and fixed-point types, M is the total number of digits. For string types, M is the maximum length. The maximum allowable value of M depends on the data type. It should be defined as the attribute of  <sql> element

3

decimal point

1

Define the number of digits following the decimal point. It should be defined as the attribute of  <sql> element

default_value

2

Define the default value of a new added data. It should be defined as the attribute of  <sql> element

allow_null

2

Either the field allow null or not. Get TRUE/FALSE value. It should be defined as the attribute of  <sql> element

 6

 trigger_template

Define the trigger template for a target database. This tag is placed in the key-generator's param or class's attribute

 7

Relationship dependency 

Define the dependency between tables who have relationships, this tag is placed in the <sql> element

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