Changes

The sql script get_data.sql from last year is copied to the current Crunchbase3 directory. However, two databases are very different now and adjustments are necessary. To keep track of the data type from each csv file used to copy to sql tablesthe SQL database, a file get_type.py is included in E:\projects\crunchbase3. This python script will print the first 5 rows of every data frame in the current directory.

Right now, a modification of load_crunchbase.sql is in both Z:/crunchbase3 and E:/projects/crunchbase3. Changes in dataset, datatype, and data columns have been made a lot compared to the previous version. The columns that are not yet added to the postgresql db are noted inside two lines of ################'s in the sql script. Since the data has changed will be changing a lot compared to last yearprevious years, using \i load_crunchbase.sql was might not very useful, and one may need to copy one table at a time by pasting the sql script into the terminal.

Files that All the dataset (17 of them) from the API have not yet been copied to the postgresql PostgreSQL server are degreesin drive Z under /bulk/crunchbase3.csvTo make date-time format in postgres work properly, all the empty string with quotes ("") in CSV files have been replaced by NULL with the command line eventssed 's/""//g' file.csv funding_round>file_clean.csv fundsThe script that I used to do that is in the file clean_data.csv investorssh in E:/projects/crunchbase3.csv iposA shorter script to do that for all the files in the directory is possible but might not be necessary and not all files require such edit.csv jobs.csv organizations.csv people.csv 03/28/2019 UPDATE

All the dataset (17 of them) from the API has been copied to the PostgreSQL server in drive Z under /bulk/crunchbase3. To make date-time format in postgres works properly, all the empty string with quotes ("") in CSV files have been replaced by NULL ==Working with the command line sed 's/""//g' file_clean.csv >file_clean.csvThe script that I used to do that is in the file clean_data.sh in E:/projects/crunchbase3. A shorter script to do that for all the files in the directory is possible but might not be necessary and not all files require such edit.database==

All the scripts in load_crunchbase.sql have been updated. It now works perfectly with the current data (as of 03/29/2019) crawled from crunchbaseAPI and includes the correct number of rows copied from the csv files at the end of each \COPY command. I have also double-checked each table by comparing the postgres version of the data and the pandas version of the data.

To see and use the data in the postgres severserver: