JDBC Object Types - Data Fixes

XML files containing one or more data fix sql statements, sql statements to back up data, and validation statements used to determine whether the data fix should be committed or rolled back.

Object Type Identification

If a file has .xml extension, then it is considered a data fix file

File Extensions

Name	Description
.xml	Extensible Markup Language file format used to create common information formats and share both the format and the data using standard ASCII text.

Object Type

Name	Code
Data Fix	`DATA_FIX`

Object Type Attributes

Name	Code	Description	Required	Default Value	Supported Values
Source	`SOURCE`	Object source location type	Yes	`SCM`	SCM
Target Location	`TARGET_LOCATION`	Path to where the file should be deployed to	No
Database URL Property	`DB_URL`	Property name for database URL	No	`FDJDBC_URL`
Database User Property	`DB_USER`	Property name for database user name	No	`FDJDBC_USER`
Database Password Property	`DB_PASSWORD`	Property name for database password	No	`FDJDBC_PASSWORD`

XML Schema

Elements without min/max occurrences listed have the default values for cardinality, which are minOccurs="1" and maxOccurs="1"

Data Fix XML Schema (XSD)

<?xml version="1.0" encoding="windows-1252" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://flexagon.com/database/datafix" targetNamespace="http://flexagon.com/database/datafix" elementFormDefault="qualified">
  <xsd:element name="DataFix">
    <xsd:annotation>
      <xsd:documentation>Data fix object</xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:all>
        <xsd:element type="xsd:string" name="Description"/>
        <xsd:element type="xsd:string" name="FixSQL"/>
        <xsd:element type="xsd:string" name="BackupSQL"/>
        <xsd:element type="xsd:string" name="ConnectStringProperty" minOccurs="0" maxOccurs="1"/>
        <xsd:element type="xsd:string" name="UserProperty" minOccurs="0" maxOccurs="1"/>
        <xsd:element type="xsd:string" name="PasswordProperty" minOccurs="0" maxOccurs="1"/>
        <xsd:element name="Validations">
          <xsd:complexType>
            <xsd:sequence>
              <xsd:element name="Validation" minOccurs="1" maxOccurs="unbounded">
                <xsd:complexType>
                  <xsd:sequence>
                    <xsd:element type="xsd:string" name="Description"/>
                    <xsd:element type="xsd:string" name="ValidationSQL" minOccurs="0" maxOccurs="1"/>
                    <xsd:element name="Environment" minOccurs="1" maxOccurs="unbounded">
                      <xsd:complexType>
                        <xsd:all>
                          <xsd:element type="xsd:string" name="EnvironmentCode"/>
                          <xsd:element name="Before" type="Operators" minOccurs="0" maxOccurs="1"/>
                          <xsd:element name="After" type="Operators" minOccurs="0" maxOccurs="1"/>
                          <xsd:element name="UpdateCount" type="Operators" minOccurs="0" maxOccurs="1"/>
                        </xsd:all>
                      </xsd:complexType>
                    </xsd:element>
                  </xsd:sequence>
                </xsd:complexType>
              </xsd:element>
            </xsd:sequence>
          </xsd:complexType>
        </xsd:element>
      </xsd:all>
    </xsd:complexType>
  </xsd:element>
  <xsd:complexType name="Operators">
    <xsd:all>
      <xsd:element name="Equals" type="xsd:int" minOccurs="0" maxOccurs="1"/>
      <xsd:element name="NotEquals" type="xsd:int" minOccurs="0" maxOccurs="1"/>
      <xsd:element name="LessThan" type="xsd:int" minOccurs="0" maxOccurs="1"/>
      <xsd:element name="LessThanEqual" type="xsd:int" minOccurs="0" maxOccurs="1"/>
      <xsd:element name="GreaterThan" type="xsd:int" minOccurs="0" maxOccurs="1"/>
      <xsd:element name="GreaterThanEqual" type="xsd:int" minOccurs="0" maxOccurs="1"/>
    </xsd:all>
  </xsd:complexType>
</xsd:schema>

Details of data fix elements are described in the table below.

Element	Path	XSD Line Number	Description
DataFix	/	3	The root element for the data fix
Description	/DataFix	9	A description for the data fix being run
FixSQL	/DataFix	10	The SQL which implements the data fix. It can be multiple statements delimited by a semicolon or slash
BackupSQL	/DataFix	11	SQL to perform necessary backup of data before executing FixSQL. This can be one or more statements delimited by a semicolon or slash Include ${{FD_PROJECT_VERSION}} in the title of your backup table to easily identify it after execution
ConnectStringProperty	/DataFix	12	The JDBC connection string for the database. The object attribute will be used if property is not specified in file
UserProperty	/DataFix	13	User to connect to database with. The object attribute will be used if property is not specified in file
PasswordProperty	/DataFix	14	Password for the database user. The object attribute will be used if property is not specified in file
Validations	/DataFix	15	The rule(s) used to validate the data fix before committing changes
Validation	/DataFix/Validations	18	A single validation rule
Description	/DataFix/Validations/Validation	21	A description for the validation rule
ValidationSQL	/DataFix/Validations/Validation	22	Select query which is executed before and after the FixSQL is executed, and result is compared with before and after values. This must be one valid SQL statement, not followed by a semicolon
Environment	/DataFix/Validations/Validation	23	The expected results defined by an environment
EnvironmentCode	/DataFix/Validations/Validation/Environment	26	FlexDeploy environment code, or DEFAULT to apply to any deploy environment not explicitly specified
Before	/DataFix/Validations/Validation/Environment	27	Contains results to check before FixSQL is executed
After	/DataFix/Validations/Validation/Environment	28	Contains results to check after FixSQL is executed
UpdateCount	/DataFix/Validations/Validation/Environment	29	Results to compare return of JDBC executeUpdate() of FixSQL. If the FixSQL contains more than one statement, it is the sum of the updated rows
Operators	N/A	42	Complex type containing list of accepted operators to be used in validations

Data Fix Source Template

<?xml version="1.0" encoding="UTF-8"?>
<DataFix xmlns="http://flexagon.com/database/datafix">
    <Description></Description>
    <FixSQL></FixSQL>
    <BackupSQL></BackupSQL>
    <ConnectStringProperty></ConnectStringProperty>
    <UserProperty></UserProperty>
    <PasswordProperty></PasswordProperty>
    <Validations>
		<!-- Can be one or more -->
        <Validation>
            <Description></Description>
            <ValidationSQL></ValidationSQL>
			<!-- Can be one or more -->
            <Environment> 
                <EnvironmentCode></EnvironmentCode>
                <Before>
                    <Equals></Equals>
                    <NotEquals></NotEquals>
                    <GreaterThan></GreaterThan>
                    <GreaterThanEqual></GreaterThanEqual>
                    <LessThan></LessThan>
                    <LessThanEqual></LessThanEqual>
                </Before>
                <After>
                    <Equals></Equals>
                    <NotEquals></NotEquals>
                    <GreaterThan></GreaterThan>
                    <GreaterThanEqual></GreaterThanEqual>
                    <LessThan></LessThan>
                    <LessThanEqual></LessThanEqual>
                </After>
                <UpdateCount>
                    <Equals></Equals>
                    <NotEquals></NotEquals>
                    <GreaterThan></GreaterThan>
                    <GreaterThanEqual></GreaterThanEqual>
                    <LessThan></LessThan>
                    <LessThanEqual></LessThanEqual>
                </UpdateCount>
            </Environment>
        </Validation>
    </Validations>
</DataFix>

Data Fix Source Examples

The first example is a simple data fix that updates one row of a table, then verifies only the expected row is updated.

Product Price Fix

<?xml version="1.0" encoding="UTF-8"?>
<DataFix xmlns="http://flexagon.com/database/datafix">
    <Description>Fix list price of product ID 47809</Description>
    <FixSQL>update product_list set list_price = 150 where product_id = 47809;</FixSQL>
    <BackupSQL>create table product_list_bkp as (select * from product_list)</BackupSQL>
    <Validations>
        <Validation>
            <Description>Make sure product_id = 47809 has a list_price of 150</Description>
            <ValidationSQL>select count(*) from product_list where list_price = 150 and product_id = 47809</ValidationSQL>
            <Environment>
                <EnvironmentCode>DEV</EnvironmentCode>
                <Before>
                    <Equals>0</Equals>
                </Before>
                <After>
                    <Equals>1</Equals>
                </After>
                <UpdateCount>
                    <Equals>1</Equals>
                </UpdateCount>
            </Environment>
        </Validation>
    </Validations>
</DataFix>

This example updates a row on the order_header table, then validates that the order_item total matches the updated order_header total.

Order Header Fix

<?xml version="1.0" encoding="UTF-8"?>
<DataFix xmlns="http://flexagon.com/database/datafix">
    <Description>Fix total_price on order_header</Description>
    <FixSQL>update order_header set total_price = 250 where order_id = 1;</FixSQL>
    <BackupSQL>create table order_header_bkp as (select * from order_header)</BackupSQL>
    <Validations>
        <Validation>
            <Description>Make sure order_header total_price is equal to the line_item total</Description>
            <ValidationSQL>select case when o.order_total = l.line_item_total then 1 when o.order_total <> l.line_item_total then 0 end 
			               as validation from
                           (select order_id, order_total from order_header where order_id = 1) o, 
                           (select order_id, sum(unit_price * quantity) as line_item_total 
                           from order_items where order_id = 1 group by order_id) l
                           where o.order_id = l.order_id</ValidationSQL>
            <Environment>
                <EnvironmentCode>DEFAULT</EnvironmentCode>
                <Before>
                    <Equals>0</Equals>
                </Before>
                <After>
                    <Equals>1</Equals>
                </After>
                <UpdateCount>
                    <Equals>1</Equals>
                </UpdateCount>
            </Environment>
            </Environment>
        </Validation>
    </Validations>
</DataFix>

This example is a data fix that updates the price of multiple products, then verifies the amount of items affected by this change.

Line Item Fix

<?xml version="1.0" encoding="UTF-8"?>
<DataFix xmlns="http://flexagon.com/database/datafix">
    <Description>Fix line items for product IDs 47809 and 45203</Description>
    <FixSQL>update product_list set list_price = 100 where product_id = 47809;
			update product_list set list_price = 75 where product_id = 45203;
			update order_items set unit_price = 100 where product_id = 47809;
            update order_items set unit_price = 75 where product_id = 45203;</FixSQL>
    <BackupSQL>create table order_items_bkp as (select * from order_items);
			   create table product_list_bkp as (select * from product_list);</BackupSQL>
    <ConnectStringProperty>DATA_FIX_URL_PROPERTY</ConnectStringProperty>
    <UserProperty>DATA_FIX_USER_PROPERTY</UserProperty>
    <PasswordProperty>DATA_FIX_PASSWORD_PROPERTY</PasswordProperty>
    <Validations>
        <Validation>
            <Description>Verify number of rows modified for product with id 47809</Description>
            <ValidationSQL>select count(*) from order_items where list_price = 100 and product_id = 47809</ValidationSQL>
            <Environment>
                <EnvironmentCode>DEV</EnvironmentCode>
                <After>
                    <GreaterThan>80</GreaterThan>
                    <LessThan>100</LessThan>
                </After>
            </Environment>
            <Environment>
                <EnvironmentCode>default</EnvironmentCode>
                <After>
                    <GreaterThan>87</GreaterThan>
                    <LessThan>93</LessThan>
                </After>
            </Environment>
        </Validation>
        <Validation>
            <Description>Verify number of rows modified for product with id 45203</Description>
            <ValidationSQL>select count(*) from order_items where list_price = 75 and product_id = 45203</ValidationSQL>
            <Environment>
                <EnvironmentCode>default</EnvironmentCode>
                <After>
                    <GreaterThan>120</GreaterThan>
                    <LessThan>125</LessThan>
                </After>
            </Environment>
        </Validation>
		<Validation>
            <Description>Verify total number of rows modified</Description>
            <ValidationSQL></ValidationSQL>
            <Environment>
                <EnvironmentCode>default</EnvironmentCode>
                <UpdateCount>
                    <GreaterThan>200</GreaterThan>
                    <LessThan>220</LessThan>
                </UpdateCount>
            </Environment>
        </Validation>
    </Validations>
</DataFix>