diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/templates/sequences/sql/10_plus/get_def.sql b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/templates/sequences/sql/10_plus/get_def.sql
index 9ecb461d..91ca135d 100644
--- a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/templates/sequences/sql/10_plus/get_def.sql
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/templates/sequences/sql/10_plus/get_def.sql
@@ -8,4 +8,4 @@ SELECT
     seqincrement AS increment_by,
     is_called
 FROM pg_sequence, {{ conn|qtIdent(data.schema) }}.{{ conn|qtIdent(data.name) }}
-WHERE seqrelid = '{{ conn|qtIdent(data.schema) }}.{{ conn|qtIdent(data.name) }}'::regclass
+WHERE seqrelid = {{data.oid}}
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/alter_seq_comment.sql b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/alter_seq_comment.sql
new file mode 100644
index 00000000..abb62082
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/alter_seq_comment.sql
@@ -0,0 +1,16 @@
+-- SEQUENCE: public."Seq1_$%{}[]()&*^!@""'`\/#"
+
+-- DROP SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#";
+
+CREATE SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    INCREMENT 5
+    START 5
+    MINVALUE 5
+    MAXVALUE 999
+    CACHE 1;
+
+ALTER SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    OWNER TO postgres;
+
+COMMENT ON SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    IS 'Some comment';
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/alter_seq_props.sql b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/alter_seq_props.sql
new file mode 100644
index 00000000..9b29c67d
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/alter_seq_props.sql
@@ -0,0 +1,17 @@
+-- SEQUENCE: public."Seq1_$%{}[]()&*^!@""'`\/#"
+
+-- DROP SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#";
+
+CREATE SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    CYCLE
+    INCREMENT 12
+    START 7
+    MINVALUE 2
+    MAXVALUE 9992
+    CACHE 2;
+
+ALTER SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    OWNER TO postgres;
+
+COMMENT ON SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    IS 'Some comment';
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/create_sequence.sql b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/create_sequence.sql
new file mode 100644
index 00000000..6d79f516
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/create_sequence.sql
@@ -0,0 +1,13 @@
+-- SEQUENCE: public."Seq1_$%{}[]()&*^!@""'`\/#"
+
+-- DROP SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#";
+
+CREATE SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    INCREMENT 5
+    START 5
+    MINVALUE 5
+    MAXVALUE 999
+    CACHE 1;
+
+ALTER SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    OWNER TO postgres;
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/test.json b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/test.json
new file mode 100644
index 00000000..6a56038a
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/10_plus/test.json
@@ -0,0 +1,49 @@
+{
+  "scenarios": [
+    {
+      "type": "create",
+      "name": "Create Sequence",
+      "endpoint": "NODE-sequence.obj",
+      "sql_endpoint": "NODE-sequence.sql_id",
+      "data": {
+        "name": "Seq1_$%{}[]()&*^!@\"'`\\/#",
+        "seqowner": "postgres",
+        "schema": "public",
+        "increment": "5",
+        "start": "5",
+        "maximum": "999",
+        "minimum": "5",
+        "cache": "1",
+        "cycled": false,
+        "relacl": [],
+        "securities": []
+      },
+      "expected_sql_file": "create_sequence.sql"
+    },{
+      "type": "alter",
+      "name": "Alter Sequence comment",
+      "endpoint": "NODE-sequence.obj_id",
+      "sql_endpoint": "NODE-sequence.sql_id",
+      "data": {
+        "comment": "Some comment"
+      },
+      "expected_sql_file": "alter_seq_comment.sql"
+    },{
+      "type": "alter",
+      "name": "Alter Sequence properties",
+      "endpoint": "NODE-sequence.obj_id",
+      "sql_endpoint": "NODE-sequence.sql_id",
+      "data": {
+        "current_value": "7", "increment": "12", "minimum": "2", "maximum": "9992", "cache": "2", "cycled": true
+      },
+      "expected_sql_file": "alter_seq_props.sql"
+    },{
+      "type": "delete",
+      "name": "Drop sequence",
+      "endpoint": "NODE-sequence.delete_id",
+      "data": {
+        "name": "Seq1_$%{}[]()&*^!@\"'`\\/#"
+      }
+    }
+  ]
+}
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/alter_seq_comment.sql b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/alter_seq_comment.sql
new file mode 100644
index 00000000..abb62082
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/alter_seq_comment.sql
@@ -0,0 +1,16 @@
+-- SEQUENCE: public."Seq1_$%{}[]()&*^!@""'`\/#"
+
+-- DROP SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#";
+
+CREATE SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    INCREMENT 5
+    START 5
+    MINVALUE 5
+    MAXVALUE 999
+    CACHE 1;
+
+ALTER SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    OWNER TO postgres;
+
+COMMENT ON SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    IS 'Some comment';
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/alter_seq_props.sql b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/alter_seq_props.sql
new file mode 100644
index 00000000..9b29c67d
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/alter_seq_props.sql
@@ -0,0 +1,17 @@
+-- SEQUENCE: public."Seq1_$%{}[]()&*^!@""'`\/#"
+
+-- DROP SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#";
+
+CREATE SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    CYCLE
+    INCREMENT 12
+    START 7
+    MINVALUE 2
+    MAXVALUE 9992
+    CACHE 2;
+
+ALTER SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    OWNER TO postgres;
+
+COMMENT ON SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    IS 'Some comment';
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/create_sequence.sql b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/create_sequence.sql
new file mode 100644
index 00000000..6d79f516
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/create_sequence.sql
@@ -0,0 +1,13 @@
+-- SEQUENCE: public."Seq1_$%{}[]()&*^!@""'`\/#"
+
+-- DROP SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#";
+
+CREATE SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    INCREMENT 5
+    START 5
+    MINVALUE 5
+    MAXVALUE 999
+    CACHE 1;
+
+ALTER SEQUENCE public."Seq1_$%{}[]()&*^!@""'`\/#"
+    OWNER TO postgres;
diff --git a/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/test.json b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/test.json
new file mode 100644
index 00000000..6a56038a
--- /dev/null
+++ b/web/pgadmin/browser/server_groups/servers/databases/schemas/sequences/tests/pg/default/test.json
@@ -0,0 +1,49 @@
+{
+  "scenarios": [
+    {
+      "type": "create",
+      "name": "Create Sequence",
+      "endpoint": "NODE-sequence.obj",
+      "sql_endpoint": "NODE-sequence.sql_id",
+      "data": {
+        "name": "Seq1_$%{}[]()&*^!@\"'`\\/#",
+        "seqowner": "postgres",
+        "schema": "public",
+        "increment": "5",
+        "start": "5",
+        "maximum": "999",
+        "minimum": "5",
+        "cache": "1",
+        "cycled": false,
+        "relacl": [],
+        "securities": []
+      },
+      "expected_sql_file": "create_sequence.sql"
+    },{
+      "type": "alter",
+      "name": "Alter Sequence comment",
+      "endpoint": "NODE-sequence.obj_id",
+      "sql_endpoint": "NODE-sequence.sql_id",
+      "data": {
+        "comment": "Some comment"
+      },
+      "expected_sql_file": "alter_seq_comment.sql"
+    },{
+      "type": "alter",
+      "name": "Alter Sequence properties",
+      "endpoint": "NODE-sequence.obj_id",
+      "sql_endpoint": "NODE-sequence.sql_id",
+      "data": {
+        "current_value": "7", "increment": "12", "minimum": "2", "maximum": "9992", "cache": "2", "cycled": true
+      },
+      "expected_sql_file": "alter_seq_props.sql"
+    },{
+      "type": "delete",
+      "name": "Drop sequence",
+      "endpoint": "NODE-sequence.delete_id",
+      "data": {
+        "name": "Seq1_$%{}[]()&*^!@\"'`\\/#"
+      }
+    }
+  ]
+}