diff --git a/lib/private/DB/MigrationService.php b/lib/private/DB/MigrationService.php
index 42f3b7de6a83e..ee64b45be6444 100644
--- a/lib/private/DB/MigrationService.php
+++ b/lib/private/DB/MigrationService.php
@@ -459,7 +459,7 @@ public function migrateSchemaOnly($to = 'latest') {
 			$targetSchema = $toSchema->getWrappedSchema();
 			if ($this->checkOracle) {
 				$beforeSchema = $this->connection->createSchema();
-				$this->ensureOracleIdentifierLengthLimit($beforeSchema, $targetSchema, strlen($this->connection->getPrefix()));
+				$this->ensureOracleConstraints($beforeSchema, $targetSchema, strlen($this->connection->getPrefix()));
 			}
 			$this->connection->migrateToSchema($targetSchema);
 			$toSchema->performDropTableCalls();
@@ -536,7 +536,7 @@ public function executeStep($version, $schemaOnly = false) {
 			$targetSchema = $toSchema->getWrappedSchema();
 			if ($this->checkOracle) {
 				$sourceSchema = $this->connection->createSchema();
-				$this->ensureOracleIdentifierLengthLimit($sourceSchema, $targetSchema, strlen($this->connection->getPrefix()));
+				$this->ensureOracleConstraints($sourceSchema, $targetSchema, strlen($this->connection->getPrefix()));
 			}
 			$this->connection->migrateToSchema($targetSchema);
 			$toSchema->performDropTableCalls();
@@ -551,7 +551,25 @@ public function executeStep($version, $schemaOnly = false) {
 		$this->markAsExecuted($version);
 	}
 
-	public function ensureOracleIdentifierLengthLimit(Schema $sourceSchema, Schema $targetSchema, int $prefixLength) {
+	/**
+	 * Naming constraints:
+	 * - Tables names must be 30 chars or shorter (27 + oc_ prefix)
+	 * - Column names must be 30 chars or shorter
+	 * - Index names must be 30 chars or shorter
+	 * - Sequence names must be 30 chars or shorter
+	 * - Primary key names must be set or the table name 23 chars or shorter
+	 *
+	 * Data constraints:
+	 * - Columns with "NotNull" can not have empty string as default value
+	 * - Columns with "NotNull" can not have number 0 as default value
+	 * - Columns with type "bool" (which is in fact integer of length 1) can not be "NotNull" as it can not store 0/false
+	 *
+	 * @param Schema $sourceSchema
+	 * @param Schema $targetSchema
+	 * @param int $prefixLength
+	 * @throws \Doctrine\DBAL\Exception
+	 */
+	public function ensureOracleConstraints(Schema $sourceSchema, Schema $targetSchema, int $prefixLength) {
 		$sequences = $targetSchema->getSequences();
 
 		foreach ($targetSchema->getTables() as $table) {
@@ -571,7 +589,11 @@ public function ensureOracleIdentifierLengthLimit(Schema $sourceSchema, Schema $
 
 				if ($thing->getNotnull() && $thing->getDefault() === ''
 					&& $sourceTable instanceof Table && !$sourceTable->hasColumn($thing->getName())) {
-					throw new \InvalidArgumentException('Column name "' . $table->getName() . '"."' . $thing->getName() . '" is NotNull, but has empty string or null as default.');
+					throw new \InvalidArgumentException('Column "' . $table->getName() . '"."' . $thing->getName() . '" is NotNull, but has empty string or null as default.');
+				}
+
+				if ($thing->getNotnull() && $thing->getType()->getName() === Types::BOOLEAN) {
+					throw new \InvalidArgumentException('Column "' . $table->getName() . '"."' . $thing->getName() . '" is type Bool and also NotNull, so it can not store "false".');
 				}
 			}
 
@@ -583,7 +605,7 @@ public function ensureOracleIdentifierLengthLimit(Schema $sourceSchema, Schema $
 
 			foreach ($table->getForeignKeys() as $thing) {
 				if ((!$sourceTable instanceof Table || !$sourceTable->hasForeignKey($thing->getName())) && \strlen($thing->getName()) > 30) {
-					throw new \InvalidArgumentException('Foreign key name "'  . $table->getName() . '"."' . $thing->getName() . '" is too long.');
+					throw new \InvalidArgumentException('Foreign key name "' . $table->getName() . '"."' . $thing->getName() . '" is too long.');
 				}
 			}
 
diff --git a/tests/lib/DB/MigrationsTest.php b/tests/lib/DB/MigrationsTest.php
index 9b6dec006d69a..507f3d0e228f9 100644
--- a/tests/lib/DB/MigrationsTest.php
+++ b/tests/lib/DB/MigrationsTest.php
@@ -18,6 +18,7 @@
 use Doctrine\DBAL\Schema\SchemaException;
 use Doctrine\DBAL\Schema\Sequence;
 use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Types\Type;
 use OC\DB\Connection;
 use OC\DB\MigrationService;
 use OC\DB\SchemaWrapper;
@@ -219,7 +220,7 @@ public function testMigrate() {
 		$this->migrationService->migrate();
 	}
 
-	public function testEnsureOracleIdentifierLengthLimitValid() {
+	public function testEnsureOracleConstraintsValid() {
 		$column = $this->createMock(Column::class);
 		$column->expects($this->once())
 			->method('getName')
@@ -274,10 +275,10 @@ public function testEnsureOracleIdentifierLengthLimitValid() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
-	public function testEnsureOracleIdentifierLengthLimitValidWithPrimaryKey() {
+	public function testEnsureOracleConstraintsValidWithPrimaryKey() {
 		$index = $this->createMock(Index::class);
 		$index->expects($this->any())
 			->method('getName')
@@ -317,10 +318,10 @@ public function testEnsureOracleIdentifierLengthLimitValidWithPrimaryKey() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
-	public function testEnsureOracleIdentifierLengthLimitValidWithPrimaryKeyDefault() {
+	public function testEnsureOracleConstraintsValidWithPrimaryKeyDefault() {
 		$defaultName = 'PRIMARY';
 		if ($this->db->getDatabasePlatform() instanceof PostgreSqlPlatform) {
 			$defaultName = \str_repeat('a', 26) . '_' . \str_repeat('b', 30) . '_seq';
@@ -370,11 +371,11 @@ public function testEnsureOracleIdentifierLengthLimitValidWithPrimaryKeyDefault(
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
 
-	public function testEnsureOracleIdentifierLengthLimitTooLongTableName() {
+	public function testEnsureOracleConstraintsTooLongTableName() {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$table = $this->createMock(Table::class);
@@ -395,11 +396,11 @@ public function testEnsureOracleIdentifierLengthLimitTooLongTableName() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
 
-	public function testEnsureOracleIdentifierLengthLimitTooLongPrimaryWithDefault() {
+	public function testEnsureOracleConstraintsTooLongPrimaryWithDefault() {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$defaultName = 'PRIMARY';
@@ -448,11 +449,11 @@ public function testEnsureOracleIdentifierLengthLimitTooLongPrimaryWithDefault()
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
 
-	public function testEnsureOracleIdentifierLengthLimitTooLongPrimaryWithName() {
+	public function testEnsureOracleConstraintsTooLongPrimaryWithName() {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$index = $this->createMock(Index::class);
@@ -491,11 +492,11 @@ public function testEnsureOracleIdentifierLengthLimitTooLongPrimaryWithName() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
 
-	public function testEnsureOracleIdentifierLengthLimitTooLongColumnName() {
+	public function testEnsureOracleConstraintsTooLongColumnName() {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$column = $this->createMock(Column::class);
@@ -525,11 +526,11 @@ public function testEnsureOracleIdentifierLengthLimitTooLongColumnName() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
 
-	public function testEnsureOracleIdentifierLengthLimitTooLongIndexName() {
+	public function testEnsureOracleConstraintsTooLongIndexName() {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$index = $this->createMock(Index::class);
@@ -562,11 +563,11 @@ public function testEnsureOracleIdentifierLengthLimitTooLongIndexName() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
 
-	public function testEnsureOracleIdentifierLengthLimitTooLongForeignKeyName() {
+	public function testEnsureOracleConstraintsTooLongForeignKeyName() {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$foreignKey = $this->createMock(ForeignKeyConstraint::class);
@@ -602,11 +603,11 @@ public function testEnsureOracleIdentifierLengthLimitTooLongForeignKeyName() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 
 
-	public function testEnsureOracleIdentifierLengthLimitTooLongSequenceName() {
+	public function testEnsureOracleConstraintsTooLongSequenceName() {
 		$this->expectException(\InvalidArgumentException::class);
 
 		$sequence = $this->createMock(Sequence::class);
@@ -630,6 +631,46 @@ public function testEnsureOracleIdentifierLengthLimitTooLongSequenceName() {
 			->method('hasSequence')
 			->willReturn(false);
 
-		self::invokePrivate($this->migrationService, 'ensureOracleIdentifierLengthLimit', [$sourceSchema, $schema, 3]);
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
+	}
+
+
+	public function testEnsureOracleConstraintsBooleanNotNull() {
+		$this->expectException(\InvalidArgumentException::class);
+
+		$column = $this->createMock(Column::class);
+		$column->expects($this->any())
+			->method('getName')
+			->willReturn('aaaa');
+		$column->expects($this->any())
+			->method('getType')
+			->willReturn(Type::getType('boolean'));
+		$column->expects($this->any())
+			->method('getNotnull')
+			->willReturn(true);
+
+		$table = $this->createMock(Table::class);
+		$table->expects($this->any())
+			->method('getName')
+			->willReturn(\str_repeat('a', 30));
+
+		$table->expects($this->once())
+			->method('getColumns')
+			->willReturn([$column]);
+
+		$schema = $this->createMock(Schema::class);
+		$schema->expects($this->once())
+			->method('getTables')
+			->willReturn([$table]);
+
+		$sourceSchema = $this->createMock(Schema::class);
+		$sourceSchema->expects($this->any())
+			->method('getTable')
+			->willThrowException(new SchemaException());
+		$sourceSchema->expects($this->any())
+			->method('hasSequence')
+			->willReturn(false);
+
+		self::invokePrivate($this->migrationService, 'ensureOracleConstraints', [$sourceSchema, $schema, 3]);
 	}
 }