Update pipeline yml and cleanup

For not able to find bash error
Update delete table statement

Author: Smart-Dev00214

.github/workflows/main.yml

@@ -2,17 +2,26 @@ trigger:
   - master
   - dev
 
+variables:
+  agent.preferPowerShellOnContainers: true
+
 jobs:
   - job: Windows
     pool:
       Django-agent-pool
 
     strategy:
       matrix:
-        Python 3.7 Windows:
+        Python 3.7 - Django 3.0:
+          python.version: '3.7'
+          tox.env: 'py37-django30'
+        Python 3.6 - Django 3.0:
+          python.version: '3.6'
+          tox.env: 'py36-django30'
+        Python 3.7 - Django 2.2:
           python.version: '3.7'
           tox.env: 'py37-django22'
-        Python 3.6 Windows:
+        Python 3.6 - Django 2.2:
           python.version: '3.6'
           tox.env: 'py36-django22'
 
@@ -28,8 +37,48 @@ jobs:
           git clone https://github.com/django/django.git
         displayName: Install requirements
 
-      - task: Bash@3
+      - script: tox -e $(tox.env)
+        displayName: Run tox
+
+  - job: Linux
+    pool:
+      vmImage: ubuntu-18.04
+
+    strategy:
+      matrix:
+        Python 3.7 - Django 3.0:
+          python.version: '3.7'
+          tox.env: 'py37-django30'
+        Python 3.6 - Django 3.0:
+          python.version: '3.6'
+          tox.env: 'py36-django30'
+        Python 3.7 - Django 2.2:
+          python.version: '3.7'
+          tox.env: 'py37-django22'
+        Python 3.6 - Django 2.2:
+          python.version: '3.6'
+          tox.env: 'py36-django22'
+
+    steps:
+      - task: UsePythonVersion@0
         inputs:
-          targetType: 'inline'
-          script: tox -e $(tox.env)
+          versionSpec: "$(python.version)"
+        displayName: Use Python $(python.version)
+
+      - script: |
+          docker pull mcr.microsoft.com/mssql/server:2017-latest-ubuntu
+          docker run -e 'ACCEPT_EULA=Y' -e 'SA_PASSWORD=MyPassword42' -p 1433:1433 -d mcr.microsoft.com/mssql/server:2017-latest-ubuntu
+          curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
+          curl https://packages.microsoft.com/config/ubuntu/18.04/prod.list | sudo tee /etc/apt/sources.list.d/mssql-release.list
+          sudo apt-get update
+          sudo ACCEPT_EULA=Y apt-get install -y msodbcsql17 g++ unixodbc-dev
+        displayName: Install SQL Server
+
+      - script: |
+          python -m pip install --upgrade pip wheel setuptools
+          pip install tox
+          git clone https://github.com/django/django.git
+        displayName: Install requirements
+
+      - script: tox -e $(tox.env)
         displayName: Run tox

azure-pipelines.yml

@@ -55,18 +55,20 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
     sql_delete_column = "ALTER TABLE %(table)s DROP COLUMN %(column)s"
     sql_delete_index = "DROP INDEX %(name)s ON %(table)s"
     sql_delete_table = """
-        DECLARE @sql_drop_constraint nvarchar(255)
-        SELECT @sql_drop_constraint = name
-        FROM sys.foreign_keys
-        WHERE referenced_object_id = object_id('%(table)s')
-        IF @sql_drop_constraint IS NOT NULL
+        DECLARE @sql_froeign_constraint_name nvarchar(128)
+        DECLARE @sql_drop_constraint nvarchar(300)
+        WHILE EXISTS(SELECT 1
+            FROM sys.foreign_keys
+            WHERE referenced_object_id = object_id('%(table)s'))
         BEGIN
+            SELECT TOP 1 @sql_froeign_constraint_name = name
+            FROM sys.foreign_keys
+            WHERE referenced_object_id = object_id('%(table)s')
             SELECT
             @sql_drop_constraint = 'ALTER TABLE [' + OBJECT_NAME(parent_object_id) + '] ' +
-            'DROP CONSTRAINT [' + @sql_drop_constraint + '] '
+            'DROP CONSTRAINT [' + @sql_froeign_constraint_name + '] '
             FROM sys.foreign_keys
             WHERE referenced_object_id = object_id('%(table)s')
-            print(@sql_drop_constraint)
             exec sp_executesql @sql_drop_constraint
         END
         DROP TABLE %(table)s