SQL different results from batch vs single select - sql

Question

I've hit a stumbling block that no Google searches have been able to answer. I am building an SQL script to distribute to my users to upgrade a database for a newer version of my application. I auto-generated the script using Visual Studio v18 SSDT schema comparison tools, but I've heavily modified the script to do a lot of existence checking before dropping tables and such (so as not to destroy user data during the upgrade.) My problem lies with checking the sys.objects table for the existence of triggers and stored procedures. When running the entire script, the queries to extract those types of objects return less results than expected. For example, in the script below, the SELECT statement for getting all the triggers returns 0 rows. But, if I highlight just the SELECT statement, right-click-->Execute in SSMS, it returns 1 row as expected. What would possibly cause the script to return different results when run in its entirety versus single statements run ad-hoc via SSMS?
I've tried removing the SET ANSI_NULLS... and SET NUMERIC_... lines but I get the same 0 results when running the script.
Any other ideas?
USE CarrierAPI_seed;
GO
SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, QUOTED_IDENTIFIER ON;
SET NUMERIC_ROUNDABORT OFF;
GO
--Create a temp table with all triggers.
IF OBJECT_ID('TempDB..#CAPI_Upgrade_Triggers','U') IS NOT NULL
BEGIN
PRINT 'Dropping table... #CAPI_Upgrade_Triggers';
DROP TABLE #CAPI_Upgrade_Triggers;
END
GO
CREATE TABLE #CAPI_Upgrade_Triggers
(
trigger_name nvarchar(255),
table_name nvarchar(255)
);
GO
INSERT INTO #CAPI_Upgrade_Triggers (trigger_name, table_name)
SELECT
s.[name] as trigger_name
, sp.[name] as table_name
--, s.*
FROM sys.objects as s
INNER JOIN sys.objects as sp
ON sp.[object_id] = s.parent_object_id
WHERE s.[type] = 'TR';
--ORDER BY trigger_name
GO
--Create a temp table with all procedures.
IF OBJECT_ID('TempDB..#CAPI_Upgrade_Procedures','U') IS NOT NULL
BEGIN
PRINT 'Dropping table... #CAPI_Upgrade_Procedures';
DROP TABLE #CAPI_Upgrade_Procedures;
END
GO
CREATE TABLE #CAPI_Upgrade_Procedures
(
[procedure_name] nvarchar(255)
);
GO
INSERT INTO #CAPI_Upgrade_Procedures ([procedure_name])
SELECT
OBJECT_NAME(s.object_id) as procedure_name
--, *
FROM sys.objects as s
WHERE s.[type] = 'P';
--WHERE s.[name] like 'sp_%';
--ORDER BY s.[name]
GO
SELECT * FROM #CAPI_Upgrade_DefaultConstraints;
SELECT * FROM #CAPI_Upgrade_FKConstraints;
SELECT * FROM #CAPI_Upgrade_Triggers;
SELECT * FROM #CAPI_Upgrade_Procedures;
PRINT SUSER_NAME();
GO