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Q&A How do I find all the tables in a database that don't have a specific column?

The select for finding tables without a specific column name is, SELECT DISTINCT table_name FROM information_schema.tables WHERE table_schema = 'DATABASE_NAME' AND table_name NOT IN( SELECT DI...

posted 4y ago by Charlie Brumbaugh‭  ·  edited 4y ago by Charlie Brumbaugh‭

Answer
#2: Post edited by user avatar Charlie Brumbaugh‭ · 2020-09-11T15:26:26Z (about 4 years ago)
  • The select for this is,
  • ```
  • SELECT DISTINCT table_name
  • FROM information_schema.tables
  • WHERE table_schema = 'DATABASE_NAME'
  • AND table_name NOT IN(
  • SELECT DISTINCT TABLE_NAME
  • FROM INFORMATION_SCHEMA.COLUMNS
  • WHERE COLUMN_NAME ='COLUMN_NAME'
  • AND TABLE_SCHEMA='DATABASE_NAME'
  • );
  • ```
  • The select for finding tables without a specific column name is,
  • ```
  • SELECT DISTINCT table_name
  • FROM information_schema.tables
  • WHERE table_schema = 'DATABASE_NAME'
  • AND table_name NOT IN(
  • SELECT DISTINCT TABLE_NAME
  • FROM INFORMATION_SCHEMA.COLUMNS
  • WHERE COLUMN_NAME ='COLUMN_NAME'
  • AND TABLE_SCHEMA='DATABASE_NAME'
  • );
  • ```
#1: Initial revision by user avatar Charlie Brumbaugh‭ · 2020-09-11T15:25:42Z (about 4 years ago)
The select for this is,

```
SELECT DISTINCT table_name 
FROM information_schema.tables
WHERE table_schema = 'DATABASE_NAME'
AND table_name NOT IN(
	SELECT DISTINCT TABLE_NAME 
    FROM INFORMATION_SCHEMA.COLUMNS
    WHERE COLUMN_NAME ='COLUMN_NAME'
	AND TABLE_SCHEMA='DATABASE_NAME'
);
```