Scenes
DataX- Ali open source offline synchronization tool realizes full and incremental synchronization from Sqlserver to Mysql on Windows:
After the data synchronization from sqlserver to mysql is realized above, the process of data synchronization from postgresql to mysql is the same.
Take the spatial_ref_sys table that saves coordinate system information in the OGC metadata table in PostGis as an example.
Create a new table with the same structure in mysql, and synchronize the data of this table in postgresql to the mysql table.
Note:
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accomplish
1. Get the template from postgresqlreader to mysqlwriter
python datax.py -r postgresqlreader -w mysqlwriter
2. Copy the json template to the postgresql2mysql.json file
Refer to configuration item documentation
https://github.com/alibaba/DataX/blob/master/postgresqlreader/doc/postgresqlreader.md
DataX/mysqlwriter.md at master · alibaba/DataX · GitHub
Modify the json file to its corresponding url and column information.
{
"job": {
"content": [
{
"reader": {
"name": "postgresqlreader",
"parameter": {
"connection": [
{
"jdbcUrl": [
"jdbc:postgresql://127.0.0.1:5432/数据库名"
],
"table": [
"spatial_ref_sys"
]
}
],
"password": "密码",
"username": "postgres",
"column": [
"srid",
"auth_name",
"auth_srid",
"srtext",
"proj4text",
]
}
},
"writer": {
"name": "mysqlwriter",
"parameter": {
"column": [
"srid",
"auth_name",
"auth_srid",
"srtext",
"proj4text",
],
"connection": [
{
"jdbcUrl": "jdbc:mysql://127.0.0.1:3306/数据库名?useUnicode=true&characterEncoding=gbk",
"table": [
"spatial_ref_sys"
]
}
],
"password": "密码",
"preSql": [
"delete from spatial_ref_sys"
],
"session": [],
"username": "root",
"writeMode": "insert"
}
}
}
],
"setting": {
"speed": {
"channel": "5"
}
}
}
}Execute synchronous command
python datax.py ./postgresql2mysql.jsonSynchronization succeeded
