Writing to a Database from Spark
One of the great features of Spark is the variety of data sources it can read from and write to. If you already have a database to write to, connecting…
One of the great features of Spark is the variety of data sources it can read from and write to. If you already have a database to write to, connecting…
One of the great features of Spark is the variety of data sources it can read from. Loading data from a database into Spark using JDBC requires 3 major steps.…
MySQL databases are often populated by loading text files directly into tables. MySQL makes this very easy to do with the LOAD DATA INFILE statements. For example: LOAD DATA LOCAL…
When working with MySQL it is often necessary to execute SQL statements or scripts programmatically from the command line. SQL statements can be included in a SQL script (text) file…
Exporting data from Postgres as a CSV or tab delimited file can be fairly simple using the COPY command. Examples below. Export an entire table as CSV: psql -c "COPY…