I found an issue with moving a project file from one of my development computers which uses a Linux server on a lan for the mysql database @192.168.1.200
Moving my project file to my laptop caused issues where the database could not be accessed as the device is mobile and not connected to the same network.
I had to locate the connection settings inside the project file to allow me to open the project without loosing connections, table joins, etc.....
in my .phpr file the changes needed to be made on line 150323, this will be a different line in other projects. However this is the identifiers that need to be changed, i've highlighted them in bold.
<m_strID>myDatabase_at_192_168_1_200</m_strID> **// Leave this alone, its the identifier for every table connection within the scripting, it does not need to be changed**
<m_strName>myDatabase at 192.168.1.200</m_strName> **// Leave this alone, its the identifier for every table connection within the scripting, it does not need to be changed**
<m_strConnectionString>mysql;**127.0.0.1**;**Username**;**Password**;;**myDatabase**;;1</m_strConnectionString>
<m_nDatabaseType>0</m_nDatabaseType>
<m_cLeftWrap>`</m_cLeftWrap>
<m_cRightWrap>`</m_cRightWrap>
<m_lastDbSyncTime>1668147533</m_lastDbSyncTime>
<m_strDBPath>db</m_strDBPath>
<m_bUseServerMapPath>1</m_bUseServerMapPath>
<m_strCustomDBConnection></m_strCustomDBConnection>
<m_CustomDBConnections></m_CustomDBConnections>
<m_connStringType>mysql</m_connStringType>
<m_strConnectInfo1>**127.0.0.1**</m_strConnectInfo1>
<m_strConnectInfo2>**Username**</m_strConnectInfo2>
<m_strConnectInfo3>**Password**</m_strConnectInfo3>
<m_strConnectInfo4></m_strConnectInfo4>
<m_strConnectInfo5>**myDatabase**</m_strConnectInfo5>
<m_strConnectInfo6></m_strConnectInfo6>
<m_strConnectInfo7>1</m_strConnectInfo7>
<m_strODBCString>DRIVER={MySQL ODBC 3.51 Driver};Server=**127.0.0.1**;Uid=**Username**;Pwd=**Password**;Database=**myDatabase**;OPTION=3</m_strODBCString>
<m_strODBCUID>**Username**</m_strODBCUID>
<m_strODBCPWD>**Password**</m_strODBCPWD>
<dbtables>
Hope this may help someone.