How to avoid multiple joins on the same table (it has 200 columns to hold IDs. Another table has a mapping of IDs to values)
425
Normalize a MySQL table with more than 250 Boolean columns
35704
How do you join on the same table, twice, in mysql?
42554
What to do with too many columns in a table?
30896
MySQL get missing IDs from table
108393
Update a table using JOIN in SQL Server?
9555
MySQL how to join tables on two fields
110490
How to mimic a full outer join using mysql views?
28853
Error Code 1117 Too many columns; MySQL column-limit on table
73960
SQL Server 2017: How do Batch Mode Adaptive Joins work?
64483
Inserting into related tables
36725
MySQL - alternatives to nested subqueries when limiting aggregate data in a correlated subquery
76065
How many rows in a database are TOO MANY?
3056
SQL Server - Combining OUTER and INNER joins
22270
Linq-to-SQL left join on left join/multiple left joins in one Linq-to-SQL statement
157063
Some part of your SQL statement is nested too deeply. Rewrite the query or break it up into smaller queries
146264
SQL Server Error 8632 due to over 100,000 entries in WHERE clause
34438
Column name or number of supplied values does not match table definition