Python - MySQL table join

null.ts :

Im trying to outer joins on multiple tables within a python query.

(outer join because some fields have null data)

Im using the following:

sql = "SELECT \
  CATINFO.Chip_ID AS Cat, \
  CATDIET.Diet_Req AS Diet, \
  CATMEDICAL.Med_his AS Med\
  FROM CATINFO \
  OUTER JOIN CATDIET, CATREQ, CATMEDICAL ON CATINFO.ID = CATDIET.Chip_ID, CATREQ.Chip_ID, CATMEDICAL.Chip_ID"

i get the following error output:

mysql.connector.errors.ProgrammingError: 1064 (42000):
'OUTER JOIN CATDIET, CATREQ, CATMEDICAL ON CATINFO.Chip_ID = CATDIET.Chip_ID, CATREQ.Chip_ID, CATMEDICAL.Chip_ID'

Im not sure exactly where ive gone wrong.

the idented table format should be like the following example:

Chip_ID   diet         req           med 
1         low carb     null          broken leg
2         null         belly rubs    null

null.ts :

sql = "SELECT \
  CATINFO.Chip_ID AS Cat, \
  CATDIET.Diet_Req AS Diet, \
  CATMEDICAL.Med_his AS Med, \
  CATREQ.Add_Req AS Req \
  FROM CATINFO \
  LEFT JOIN CATDIET ON CATINFO.Chip_ID = CATDIET.Chip_ID \
  LEFT JOIN CATMEDICAL ON CATINFO.Chip_ID = CATMEDICAL.Chip_ID \
  LEFT JOIN CATREQ ON CATINFO.Chip_ID = CATREQ.chip_ID "

Guess you like

Origin http://10.200.1.11:23101/article/api/json?id=386124&siteId=1

Python - MySQL table join

MySQL join table

mySQL table join

MySQL create table advanced join

MySQL Join and group by on same table

MySQL table join query basics

Python MySQL Join

MySQL table join query packet statistics (3)

mysql multi-table join query

The use MySQL ON LEFT JOIN of the table data and WHRERE

MYSQL-Multi-table join query (graphic)

[MySQL Must Know and Know (12)] [Join Table]

MYSQL: Two tables JOIN form a new table

MySQL "Multi-table join operation 2"

MySQL Random Limit Select with table join

mysql query with condition, join table query

join two table return blank if not found MYSQL

Unique join while keeping the original table mysql

MySQL two table join query practice

MySQL - multi-table join query

[MySQL] Execution order optimization query of MySQL join table query

mysql join table associated self-energizing + id

mysql-- multi-table - inner join query

Mysql multi-table join query example explanation

[MySQL] multi-table combined query, join query, subquery

MySQL (inner, left, right) join query (multi-table query)

MySQL5.7 database-table join & subquery & foreign key

Mysql two table join check delete DELETE can not be deleted

Why Mysql use index for a single table, but not when join

MYSQL How to preserve order of second table in a join operation?