diff --git a/oslo/db/sqlalchemy/provision.py b/oslo/db/sqlalchemy/provision.py
index 598305b6..317d7f90 100644
--- a/oslo/db/sqlalchemy/provision.py
+++ b/oslo/db/sqlalchemy/provision.py
@@ -52,7 +52,7 @@ def _execute_sql(engine, sql, driver):
     except sqlalchemy.exc.OperationalError:
         msg = ('%s does not match database admin '
                'credentials or database does not exist.')
-        LOG.exception(msg % engine.url)
+        LOG.exception(msg, engine.url)
         raise exc.DBConnectionError(msg % engine.url)
 
 
diff --git a/oslo/db/sqlalchemy/session.py b/oslo/db/sqlalchemy/session.py
index 9bf4b6d2..e7236c87 100644
--- a/oslo/db/sqlalchemy/session.py
+++ b/oslo/db/sqlalchemy/session.py
@@ -671,7 +671,7 @@ def create_engine(sql_connection, sqlite_fk=False, mysql_sql_mode=None,
             remaining = 'infinite'
         while True:
             msg = _LW('SQL connection failed. %s attempts left.')
-            LOG.warning(msg % remaining)
+            LOG.warning(msg, remaining)
             if remaining != 'infinite':
                 remaining -= 1
             time.sleep(retry_interval)
diff --git a/oslo/db/sqlalchemy/test_migrations.py b/oslo/db/sqlalchemy/test_migrations.py
index 661b0a7e..5972d03a 100644
--- a/oslo/db/sqlalchemy/test_migrations.py
+++ b/oslo/db/sqlalchemy/test_migrations.py
@@ -60,10 +60,10 @@ def _set_db_lock(lock_path=None, lock_prefix=None):
                 path = lock_path or os.environ.get("OSLO_LOCK_PATH")
                 lock = lockfile.FileLock(os.path.join(path, lock_prefix))
                 with lock:
-                    LOG.debug('Got lock "%s"' % f.__name__)
+                    LOG.debug('Got lock "%s"', f.__name__)
                     return f(*args, **kwargs)
             finally:
-                LOG.debug('Lock released "%s"' % f.__name__)
+                LOG.debug('Lock released "%s"', f.__name__)
         return wrapper
     return decorator
 
@@ -88,7 +88,7 @@ class BaseMigrationTestCase(test_base.BaseTestCase):
 
         # Load test databases from the config file. Only do this
         # once. No need to re-run this on each test...
-        LOG.debug('config_path is %s' % self.CONFIG_FILE_PATH)
+        LOG.debug('config_path is %s', self.CONFIG_FILE_PATH)
         if os.path.exists(self.CONFIG_FILE_PATH):
             cp = moves.configparser.RawConfigParser()
             try:
@@ -193,7 +193,7 @@ class WalkVersionsMixin(object):
                          self.migration_api.db_version(engine,
                                                        self.REPOSITORY))
 
-        LOG.debug('latest version is %s' % self.REPOSITORY.latest)
+        LOG.debug('latest version is %s', self.REPOSITORY.latest)
         versions = range(self.INIT_VERSION + 1, self.REPOSITORY.latest + 1)
 
         for version in versions:
@@ -264,6 +264,7 @@ class WalkVersionsMixin(object):
                 if check:
                     check(engine, data)
         except Exception:
-            LOG.error(_LE("Failed to migrate to version %s on engine %s") %
-                      (version, engine))
+            LOG.error(_LE("Failed to migrate to version %(version)s on "
+                          "engine %(engine)s"), {'version': version,
+                                                 'engine': engine})
             raise
diff --git a/oslo/db/sqlalchemy/utils.py b/oslo/db/sqlalchemy/utils.py
index 4e17fc7e..12ffcd9c 100644
--- a/oslo/db/sqlalchemy/utils.py
+++ b/oslo/db/sqlalchemy/utils.py
@@ -385,7 +385,7 @@ def drop_old_duplicate_entries_from_table(migrate_engine, table_name,
             [table.c.id]).where(delete_condition)
         for row in migrate_engine.execute(rows_to_delete_select).fetchall():
             LOG.info(_LI("Deleting duplicated row with id: %(id)s from table: "
-                         "%(table)s") % dict(id=row[0], table=table_name))
+                         "%(table)s"), dict(id=row[0], table=table_name))
 
         if use_soft_delete:
             delete_statement = table.update().\