Deleting records from all tables, what's wrong here? - sql-server

Question

So I'm running the SqlRestore utility created by AppHarbor, which can be found here:
https://github.com/appharbor/AppHarbor-SqlServerBulkCopy
The first step of the utility is to wipe out the data from the destination database, using these commands:
// http://stackoverflow.com/questions/155246/how-do-you-truncate-all-tables-in-a-database-using-tsql/156813#156813
StringBuilder commandBuilder = new StringBuilder();
commandBuilder.Append(
#"
-- disable all constraints
EXEC sp_msforeachtable ""ALTER TABLE ? NOCHECK CONSTRAINT all""
-- delete data in all tables
EXEC sp_msforeachtable ""DELETE FROM ?""
-- enable all constraints
exec sp_msforeachtable ""ALTER TABLE ? WITH CHECK CHECK CONSTRAINT all""
");
When I run this (both via the program, and also manually via Management Studio), the delete statement is throwing an error saying invalid column name schoolid
At first, I had no idea which table was throwing the error, so I re-wrote the delete step to a cursor, shown here:
declare tableCursor cursor local forward_only for
select [name]
from sys.objects
where [type] = 'U'
declare #tableName varchar(50)
open tableCursor
fetch next from tableCursor into #tableName
while (##FETCH_STATUS = 0) begin
print 'trying to delete from ' + #tableName
exec('delete from ' + #tableName)
print 'deleted from ' + #tableName
fetch next from tableCursor into #tableName
end
close tableCursor
deallocate tableCursor
Executing the script this way tells me that it was "trying to delete from table X", but when I look at the table definition of table X, that column DOES NOT EXIST (and never has)!
So next, I decide to just manually delete the table, then use VS Sql Server Schema comparison to re-generate the table to my destination database, since it was possibily corrupt somehow.
Once it's re-generated, I re-run that delete script, AND IT STILL THROWS THE ERROR!
Here's the table definition:
CREATE TABLE [dbo].[TourneyPoolMatchResult] (
[TourneyPoolMatchResultId] INT IDENTITY (1, 1) NOT NULL,
[TournamentTypeId] INT NOT NULL,
[WinningWrestlerId] INT NOT NULL,
[LosingWrestlerId] INT NOT NULL,
[WinType] VARCHAR (5) NOT NULL,
[Score] VARCHAR (20) NULL,
[BonusPoints] DECIMAL (2, 1) NOT NULL,
[AdvancementPoints] DECIMAL (2, 1) NOT NULL,
[PlacementPoints] INT NOT NULL,
[LosingWrestlerPlacementPoints] INT NOT NULL,
PRIMARY KEY CLUSTERED ([TourneyPoolMatchResultId] ASC)
);
GO
CREATE trigger [dbo].[trg_TourneyPoolMatchResult_Change]
on [dbo].[TourneyPoolMatchResult]
after insert, update, delete
as
exec [UpdateTeamPoints];
exec [UpdatePointsForSubmittal];
As you can see, nowhere in that table definition does it have anything about SchoolId.
What in the world is going on here?

Answer 1

You use the delete statement and you have some triggers on delete. Maybe your trigger function (e.g. UpdateTeamPoints or UpdatePointsForSubmittal) reference a column named schoolid? Please search your sql code, is there any schoolid anywhere?

Answer 2

If your tables haven't Foreign Key constraints instead of
DELETE FROM table_name;
use:
TRUNCATE TABLE table_name;
From TRUNCATE:
Removes all rows from a table or specified partitions of a table,
without logging the individual row deletions. TRUNCATE TABLE is
similar to the DELETE statement with no WHERE clause; however,
TRUNCATE TABLE is faster and uses fewer system and transaction log
resources.
and
TRUNCATE TABLE cannot activate a trigger because the operation does
not log individual row deletions. For more information, see CREATE
TRIGGER (Transact-SQL).