diff --git a/Makefile b/Makefile
index 6318d2d88..3912f7766 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,6 @@ db: db_sqlite
 	usql pg://postgres:pgpass@localhost:55432/testdb?sslmode=disable -f testdata/ddl/postgres95.sql
 	usql pg://postgres:pgpass@localhost:55413/testdb?sslmode=disable -f testdata/ddl/postgres.sql
 	usql my://root:mypass@localhost:33306/testdb -f testdata/ddl/mysql56.sql
-	usql my://root:mypass@localhost:33308/testdb -f testdata/ddl/mysql.sql
 	usql my://root:mypass@localhost:33308/testdb -c "CREATE DATABASE IF NOT EXISTS relations;"
 	usql my://root:mypass@localhost:33308/relations -f testdata/ddl/detect_relations.sql
 	usql my://root:mypass@localhost:33308/testdb -c "CREATE DATABASE IF NOT EXISTS relations_singular;"
diff --git a/docker-compose.yml b/docker-compose.yml
index ca8b36dc1..4a608e8e0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -35,6 +35,9 @@ services:
     environment:
       - MYSQL_DATABASE=testdb
       - MYSQL_ROOT_PASSWORD=mypass
+      - LANG=C.UTF-8
+    volumes:
+      - ./testdata/ddl/mysql:/docker-entrypoint-initdb.d
   mariadb:
     image: mariadb:10.5
     restart: always
diff --git a/drivers/mssql/mssql.go b/drivers/mssql/mssql.go
index b1382de45..3de3b558f 100644
--- a/drivers/mssql/mssql.go
+++ b/drivers/mssql/mssql.go
@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/k1LoW/tbls/ddl"
+	"github.com/k1LoW/tbls/dict"
 	"github.com/k1LoW/tbls/schema"
 	"github.com/pkg/errors"
 )
@@ -402,6 +403,12 @@ ORDER BY i.index_id
 		tables = append(tables, table)
 	}
 
+	functions, err := m.getFunctions()
+	if err != nil {
+		return err
+	}
+	s.Functions = functions
+
 	s.Tables = tables
 
 	// relations
@@ -459,6 +466,67 @@ ORDER BY i.index_id
 	return nil
 }
 
+const query = `SELECT SCHEMA_NAME(obj.schema_id) AS schema_name,
+	obj.name as name,
+	CASE type
+		WHEN 'FN' THEN 'SQL scalar function'
+		WHEN 'TF' THEN 'SQL table-valued-function'
+		WHEN 'IF' THEN 'SQL inline table-valued function'
+		WHEN 'P' THEN 'SQL Stored Procedure'
+		WHEN 'X' THEN 'Extended stored procedure'
+	END AS type,
+	TYPE_NAME(ret.user_type_id) AS return_type,
+	SUBSTRING(par.parameters, 0, LEN(par.parameters)) AS parameters
+FROM sys.objects obj
+JOIN sys.sql_modules mod
+ON mod.object_id = obj.object_id
+CROSS APPLY (SELECT p.name + ' ' + TYPE_NAME(p.user_type_id) + ', ' 
+			FROM sys.parameters p
+			WHERE p.object_id = obj.object_id 
+						AND p.parameter_id != 0 
+		 FOR XML PATH ('') ) par (parameters)
+LEFT JOIN sys.parameters ret
+	 ON obj.object_id = ret.object_id
+	 AND ret.parameter_id = 0
+WHERE obj.type IN ('FN', 'TF', 'IF', 'P', 'X')
+ORDER BY schema_name, name;`
+
+func (m *Mssql) getFunctions() ([]*schema.Function, error) {
+	functions := []*schema.Function{}
+	functionsResult, err := m.db.Query(query)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	defer functionsResult.Close()
+
+	for functionsResult.Next() {
+		var (
+			schemaName string
+			name       string
+			typeValue  string
+			returnType sql.NullString
+			arguments  sql.NullString
+		)
+		err := functionsResult.Scan(&schemaName, &name, &typeValue, &returnType, &arguments)
+		if err != nil {
+			return functions, errors.WithStack(err)
+		}
+		function := &schema.Function{
+			Name:       fullTableName(schemaName, name),
+			Type:       typeValue,
+			ReturnType: returnType.String,
+			Arguments:  arguments.String,
+		}
+
+		functions = append(functions, function)
+	}
+	return functions, nil
+}
+
+func fullTableName(owner string, tableName string) string {
+	return fmt.Sprintf("%s.%s", owner, tableName)
+}
+
 func (m *Mssql) Info() (*schema.Driver, error) {
 	var v string
 	row := m.db.QueryRow(`SELECT @@VERSION`)
@@ -467,9 +535,17 @@ func (m *Mssql) Info() (*schema.Driver, error) {
 		return nil, err
 	}
 
+	dct := dict.New()
+	dct.Merge(map[string]string{
+		"Functions": "Stored procedures and functions",
+	})
+
 	d := &schema.Driver{
 		Name:            "sqlserver",
 		DatabaseVersion: v,
+		Meta: &schema.DriverMeta{
+			Dict: &dct,
+		},
 	}
 	return d, nil
 }
diff --git a/drivers/mysql/mysql.go b/drivers/mysql/mysql.go
index fffc335a5..434c379b3 100644
--- a/drivers/mysql/mysql.go
+++ b/drivers/mysql/mysql.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/aquasecurity/go-version/pkg/version"
 	"github.com/k1LoW/tbls/ddl"
+	"github.com/k1LoW/tbls/dict"
 	"github.com/k1LoW/tbls/drivers"
 	"github.com/k1LoW/tbls/schema"
 	"github.com/pkg/errors"
@@ -418,6 +419,12 @@ WHERE table_schema = ? AND table_name = ? ORDER BY ordinal_position`
 		tables = append(tables, table)
 	}
 
+	functions, err := m.getFunctions()
+	if err != nil {
+		return err
+	}
+	s.Functions = functions
+
 	s.Tables = tables
 
 	// Relations
@@ -473,6 +480,50 @@ WHERE table_schema = ? AND table_name = ? ORDER BY ordinal_position`
 	return nil
 }
 
+const queryFunctions = `SELECT r.routine_schema as database_name,
+r.routine_name,
+r.routine_type AS type,
+r.data_type AS return_type,
+GROUP_CONCAT(CONCAT(p.parameter_name, ' ', p.data_type) SEPARATOR '; ') AS parameter
+FROM information_schema.routines r
+LEFT JOIN information_schema.parameters p
+	 ON p.specific_schema = r.routine_schema
+	 AND p.specific_name = r.specific_name
+WHERE routine_schema NOT IN ('sys', 'information_schema', 'mysql', 'performance_schema')
+GROUP BY r.routine_schema, r.routine_name, r.routine_type, r.data_type, r.routine_definition`
+
+func (m *Mysql) getFunctions() ([]*schema.Function, error) {
+	functions := []*schema.Function{}
+	functionsResult, err := m.db.Query(queryFunctions)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	defer functionsResult.Close()
+
+	for functionsResult.Next() {
+		var (
+			databaseName string
+			name         string
+			typeValue    string
+			returnType   string
+			arguments    sql.NullString
+		)
+		err := functionsResult.Scan(&databaseName, &name, &typeValue, &returnType, &arguments)
+		if err != nil {
+			return functions, errors.WithStack(err)
+		}
+		subroutine := &schema.Function{
+			Name:       name,
+			Type:       typeValue,
+			ReturnType: returnType,
+			Arguments:  arguments.String,
+		}
+
+		functions = append(functions, subroutine)
+	}
+	return functions, nil
+}
+
 // Info return schema.Driver
 func (m *Mysql) Info() (*schema.Driver, error) {
 	var v string
@@ -487,9 +538,17 @@ func (m *Mysql) Info() (*schema.Driver, error) {
 		name = "mariadb"
 	}
 
+	dct := dict.New()
+	dct.Merge(map[string]string{
+		"Functions": "Stored procedures and functions",
+	})
+
 	d := &schema.Driver{
 		Name:            name,
 		DatabaseVersion: v,
+		Meta: &schema.DriverMeta{
+			Dict: &dct,
+		},
 	}
 	return d, nil
 }
@@ -509,8 +568,5 @@ SELECT table_name, table_type, table_comment FROM information_schema.tables WHER
 }
 
 func convertColumnNullable(str string) bool {
-	if str == "NO" {
-		return false
-	}
-	return true
+	return str != "NO"
 }
diff --git a/drivers/postgres/postgres.go b/drivers/postgres/postgres.go
index fc492af32..2dc5c9ee3 100644
--- a/drivers/postgres/postgres.go
+++ b/drivers/postgres/postgres.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/aquasecurity/go-version/pkg/version"
 	"github.com/k1LoW/tbls/ddl"
+	"github.com/k1LoW/tbls/dict"
 	"github.com/k1LoW/tbls/schema"
 	"github.com/lib/pq"
 	"github.com/pkg/errors"
@@ -296,6 +297,12 @@ ORDER BY tgrelid
 		tables = append(tables, table)
 	}
 
+	functions, err := p.getFunctions()
+	if err != nil {
+		return err
+	}
+	s.Functions = functions
+
 	s.Tables = tables
 
 	// Relations
@@ -364,6 +371,106 @@ ORDER BY tgrelid
 	return nil
 }
 
+const queryFunctions95 = `SELECT n.nspname AS schema_name,
+p.proname AS specific_name,
+TEXT 'FUNCTION',
+t.typname AS return_type,
+pg_get_function_arguments(p.oid) AS arguments
+from pg_proc p
+LEFT JOIN pg_namespace n ON p.pronamespace = n.oid
+LEFT JOIN pg_type t ON t.oid = p.prorettype 
+WHERE n.nspname NOT IN ('pg_catalog', 'information_schema')`
+
+const queryFunctions = `SELECT n.nspname AS schema_name,
+p.proname AS specific_name,
+CASE WHEN p.prokind = 'p' THEN TEXT 'PROCEDURE' ELSE CASE WHEN p.prokind = 'f' THEN TEXT 'FUNCTION' ELSE p.prokind END END,
+t.typname AS return_type,
+pg_get_function_arguments(p.oid) AS arguments
+FROM pg_proc p
+LEFT JOIN pg_namespace n ON p.pronamespace = n.oid
+LEFT JOIN pg_type t ON t.oid = p.prorettype 
+WHERE n.nspname NOT IN ('pg_catalog', 'information_schema')`
+
+const queryStoredProcedureSupported = `SELECT column_name 
+FROM information_schema.columns 
+WHERE table_name='pg_proc' and column_name='prokind';`
+
+func (p *Postgres) isProceduresSupported() (bool, error) {
+	result, err := p.db.Query(queryStoredProcedureSupported)
+	if err != nil {
+		return false, errors.WithStack(err)
+	}
+	defer result.Close()
+
+	if result.Next() {
+		var (
+			name sql.NullString
+		)
+		err := result.Scan(&name)
+		if err != nil {
+			return false, errors.WithStack(err)
+		}
+		return true, nil
+	}
+	return false, nil
+}
+
+func (p *Postgres) getFunctions() ([]*schema.Function, error) {
+	var functions []*schema.Function
+	storedProcedureSupported, err := p.isProceduresSupported()
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	if storedProcedureSupported {
+		functions, err = p.getFunctionsByQuery(queryFunctions)
+		if err != nil {
+			return nil, errors.WithStack(err)
+		}
+	} else {
+		functions, err = p.getFunctionsByQuery(queryFunctions95)
+		if err != nil {
+			return nil, errors.WithStack(err)
+		}
+	}
+	return functions, nil
+}
+
+func (p *Postgres) getFunctionsByQuery(query string) ([]*schema.Function, error) {
+	functions := []*schema.Function{}
+	functionsResult, err := p.db.Query(query)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	defer functionsResult.Close()
+
+	for functionsResult.Next() {
+		var (
+			schemaName string
+			name       string
+			typeValue  string
+			returnType string
+			arguments  sql.NullString
+		)
+		err := functionsResult.Scan(&schemaName, &name, &typeValue, &returnType, &arguments)
+		if err != nil {
+			return functions, errors.WithStack(err)
+		}
+		function := &schema.Function{
+			Name:       fullTableName(schemaName, name),
+			Type:       typeValue,
+			ReturnType: returnType,
+			Arguments:  arguments.String,
+		}
+
+		functions = append(functions, function)
+	}
+	return functions, nil
+}
+
+func fullTableName(owner string, tableName string) string {
+	return fmt.Sprintf("%s.%s", owner, tableName)
+}
+
 // Info return schema.Driver
 func (p *Postgres) Info() (*schema.Driver, error) {
 	var v string
@@ -378,10 +485,17 @@ func (p *Postgres) Info() (*schema.Driver, error) {
 		name = "redshift"
 	}
 
+	dct := dict.New()
+	dct.Merge(map[string]string{
+		"Functions": "Stored procedures and functions",
+	})
+
 	d := &schema.Driver{
 		Name:            name,
 		DatabaseVersion: v,
-		Meta:            &schema.DriverMeta{},
+		Meta: &schema.DriverMeta{
+			Dict: &dct,
+		},
 	}
 	return d, nil
 }
diff --git a/output/json/json_test.go b/output/json/json_test.go
index ba116e1e0..851faba12 100644
--- a/output/json/json_test.go
+++ b/output/json/json_test.go
@@ -92,7 +92,7 @@ func newTestSchema() *schema.Schema {
 		Comment: "table a",
 		Columns: []*schema.Column{
 			ca,
-			&schema.Column{
+			{
 				Name:     "a2",
 				Type:     "datetime",
 				Comment:  "column a2",
@@ -110,7 +110,7 @@ func newTestSchema() *schema.Schema {
 		Comment: "table b",
 		Columns: []*schema.Column{
 			cb,
-			&schema.Column{
+			{
 				Name:     "b2",
 				Comment:  "column b2",
 				Type:     "text",
@@ -136,6 +136,7 @@ func newTestSchema() *schema.Schema {
 		Relations: []*schema.Relation{
 			r,
 		},
+		Functions: []*schema.Function{},
 		Driver: &schema.Driver{
 			Name:            "testdriver",
 			DatabaseVersion: "1.0.0",
diff --git a/output/md/md.go b/output/md/md.go
index c65eee35f..fbca535f2 100644
--- a/output/md/md.go
+++ b/output/md/md.go
@@ -478,16 +478,41 @@ func (m *Md) makeSchemaTemplateData(s *schema.Schema) map[string]interface{} {
 		tablesData = m.addNumberToTable(tablesData)
 	}
 
+	tablesSubroutineData := [][]string{}
+	tablesSubroutineHeader := []string{
+		m.config.MergedDict.Lookup("Name"),
+		m.config.MergedDict.Lookup("ReturnType"),
+		m.config.MergedDict.Lookup("Arguments"),
+		m.config.MergedDict.Lookup("Type"),
+	}
+	tablesSubroutineHeaderLine := []string{"----", "-------", "-------", "----"}
+	tablesSubroutineData = append(tablesSubroutineData,
+		tablesSubroutineHeader,
+		tablesSubroutineHeaderLine,
+	)
+
+	for _, t := range s.Functions {
+		data := []string{
+			t.Name,
+			t.ReturnType,
+			t.Arguments,
+			t.Type,
+		}
+		tablesSubroutineData = append(tablesSubroutineData, data)
+	}
+
 	if adjust {
 		return map[string]interface{}{
-			"Schema": s,
-			"Tables": adjustTable(tablesData),
+			"Schema":    s,
+			"Tables":    adjustTable(tablesData),
+			"Functions": adjustTable(tablesSubroutineData),
 		}
 	}
 
 	return map[string]interface{}{
-		"Schema": s,
-		"Tables": tablesData,
+		"Schema":    s,
+		"Tables":    tablesData,
+		"Functions": tablesSubroutineData,
 	}
 }
 
diff --git a/output/md/templates/index.md.tmpl b/output/md/templates/index.md.tmpl
index 777f07d2a..f26f97f09 100644
--- a/output/md/templates/index.md.tmpl
+++ b/output/md/templates/index.md.tmpl
@@ -17,6 +17,13 @@
 {{ range $t := .Tables }}
 |{{ range $d := $t }} {{ $d | nl2br }} |{{ end }}
 {{- end -}}
+{{- if .Schema.Functions }}
+
+## {{ "Functions" | lookup }}
+{{ range $t := .Functions }}
+|{{ range $d := $t }} {{ $d | nl2br }} |{{ end }}
+{{- end -}}
+{{- end -}}
 {{- if .er }}
 
 ## {{ "Relations" | lookup }}
diff --git a/output/yaml/yaml_test.go b/output/yaml/yaml_test.go
index d5bb09339..d72183c5a 100644
--- a/output/yaml/yaml_test.go
+++ b/output/yaml/yaml_test.go
@@ -92,7 +92,7 @@ func newTestSchema() *schema.Schema {
 		Comment: "table a",
 		Columns: []*schema.Column{
 			ca,
-			&schema.Column{
+			{
 				Name:     "a2",
 				Type:     "datetime",
 				Comment:  "column a2",
@@ -110,7 +110,7 @@ func newTestSchema() *schema.Schema {
 		Comment: "table b",
 		Columns: []*schema.Column{
 			cb,
-			&schema.Column{
+			{
 				Name:     "b2",
 				Comment:  "column b2",
 				Type:     "text",
@@ -136,6 +136,7 @@ func newTestSchema() *schema.Schema {
 		Relations: []*schema.Relation{
 			r,
 		},
+		Functions: []*schema.Function{},
 		Driver: &schema.Driver{
 			Name:            "testdriver",
 			DatabaseVersion: "1.0.0",
diff --git a/sample/adjust/README.md b/sample/adjust/README.md
index 87eaeeffb..9b2e2ac39 100644
--- a/sample/adjust/README.md
+++ b/sample/adjust/README.md
@@ -25,6 +25,23 @@ Sample PostgreSQL database document.
 | [time.hyphenated-table](time.hyphenated-table.md)         | 1       |                                            | BASE TABLE        |
 | [time.referencing](time.referencing.md)                   | 3       |                                            | BASE TABLE        |
 
+## Stored procedures and functions
+
+| Name                      | ReturnType | Arguments                 | Type      |
+| ------------------------- | ---------- | ------------------------- | --------- |
+| public.uuid_nil           | uuid       |                           | FUNCTION  |
+| public.uuid_ns_dns        | uuid       |                           | FUNCTION  |
+| public.uuid_ns_url        | uuid       |                           | FUNCTION  |
+| public.uuid_ns_oid        | uuid       |                           | FUNCTION  |
+| public.uuid_ns_x500       | uuid       |                           | FUNCTION  |
+| public.uuid_generate_v1   | uuid       |                           | FUNCTION  |
+| public.uuid_generate_v1mc | uuid       |                           | FUNCTION  |
+| public.uuid_generate_v3   | uuid       | namespace uuid, name text | FUNCTION  |
+| public.uuid_generate_v4   | uuid       |                           | FUNCTION  |
+| public.uuid_generate_v5   | uuid       | namespace uuid, name text | FUNCTION  |
+| public.update_updated     | trigger    |                           | FUNCTION  |
+| public.reset_comment      | void       | comment_id integer        | PROCEDURE |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/detect_relations/README.md b/sample/detect_relations/README.md
index 08da2f375..689a6a5d1 100644
--- a/sample/detect_relations/README.md
+++ b/sample/detect_relations/README.md
@@ -22,6 +22,13 @@ Sample database document.
 | [user_options](user_options.md) | 4 | User options table | BASE TABLE |  |
 | [users](users.md) | 6 | Users table | BASE TABLE |  |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| CustomerLevel | varchar | credit decimal | FUNCTION |
+| GetAllComments |  |  | PROCEDURE |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/detect_relations_singular/README.md b/sample/detect_relations_singular/README.md
index 85bdd8fdd..e0cf4061c 100644
--- a/sample/detect_relations_singular/README.md
+++ b/sample/detect_relations_singular/README.md
@@ -22,6 +22,13 @@ Sample database document.
 | [user](user.md) | 6 | User table | BASE TABLE |  |
 | [user_option](user_option.md) | 4 | User option table | BASE TABLE |  |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| CustomerLevel | varchar | credit decimal | FUNCTION |
+| GetAllComments |  |  | PROCEDURE |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/dict/README.md b/sample/dict/README.md
index f4fb28499..a3d72c263 100644
--- a/sample/dict/README.md
+++ b/sample/dict/README.md
@@ -14,6 +14,13 @@
 | [user_options](user_options.md)   | 4          | User options table                         | BASE TABLE |
 | [users](users.md)                 | 6          | Users table                                | BASE TABLE |
 
+## Stored procedures and functions
+
+| 名前             | ReturnType | Arguments      | タイプ       |
+| -------------- | ---------- | -------------- | --------- |
+| CustomerLevel  | varchar    | credit decimal | FUNCTION  |
+| GetAllComments |            |                | PROCEDURE |
+
 ## ER図
 
 ![er](schema.svg)
diff --git a/sample/exclude/README.md b/sample/exclude/README.md
index 8cce79818..5df44b1c4 100644
--- a/sample/exclude/README.md
+++ b/sample/exclude/README.md
@@ -12,6 +12,13 @@
 | [user_options](user_options.md) | 4 | User options table | BASE TABLE |
 | [users](users.md) | 6 | Users table | BASE TABLE |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| CustomerLevel | varchar | credit decimal | FUNCTION |
+| GetAllComments |  |  | PROCEDURE |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/font/README.md b/sample/font/README.md
index 04e438389..b529dbb94 100644
--- a/sample/font/README.md
+++ b/sample/font/README.md
@@ -18,6 +18,13 @@
 | [user_options](user_options.md) | 4 | User options table | BASE TABLE |
 | [users](users.md) | 6 | Users table | BASE TABLE |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| CustomerLevel | varchar | credit decimal | FUNCTION |
+| GetAllComments |  |  | PROCEDURE |
+
 ## Relations
 
 ![er](schema.png)
diff --git a/sample/mssql/README.md b/sample/mssql/README.md
index 1d3c16ea4..4731b74b9 100644
--- a/sample/mssql/README.md
+++ b/sample/mssql/README.md
@@ -24,6 +24,13 @@ Sample database document.
 | [administrator.blogs](administrator.blogs.md) | 6 | admin blogs | BASIC TABLE |  |
 | [name with spaces](name%20with%20spaces.md) | 1 |  | VIEW |  |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| dbo.get_user |  | @userid int | SQL inline table-valued function |
+| dbo.What_DB_is_that |  | @ID int | SQL Stored Procedure |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/mysql/README.md b/sample/mysql/README.md
index cefe7375d..5694dd1d4 100644
--- a/sample/mysql/README.md
+++ b/sample/mysql/README.md
@@ -22,6 +22,13 @@ Sample database document.
 | [user_options](user_options.md) | 4 | User options table | BASE TABLE |  |
 | [users](users.md) | 6 | Users table | BASE TABLE |  |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| CustomerLevel | varchar | credit decimal | FUNCTION |
+| GetAllComments |  |  | PROCEDURE |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/number/README.md b/sample/number/README.md
index de03d1b18..28e67c6ef 100644
--- a/sample/number/README.md
+++ b/sample/number/README.md
@@ -22,6 +22,13 @@ Sample database document.
 | 8 | [user_options](user_options.md) | 4 | User options table | BASE TABLE |  |
 | 9 | [users](users.md) | 6 | Users table | BASE TABLE |  |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| CustomerLevel | varchar | credit decimal | FUNCTION |
+| GetAllComments |  |  | PROCEDURE |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/png/README.md b/sample/png/README.md
index 884c9591c..8529bf06d 100644
--- a/sample/png/README.md
+++ b/sample/png/README.md
@@ -22,6 +22,13 @@ Sample database document.
 | [user_options](user_options.md) | 4 | User options table | BASE TABLE |  |
 | [users](users.md) | 6 | Users table | BASE TABLE |  |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| CustomerLevel | varchar | credit decimal | FUNCTION |
+| GetAllComments |  |  | PROCEDURE |
+
 ## Relations
 
 ![er](schema.png)
diff --git a/sample/postgres/README.md b/sample/postgres/README.md
index 6371b8f7b..740854d6d 100644
--- a/sample/postgres/README.md
+++ b/sample/postgres/README.md
@@ -25,6 +25,23 @@ Sample PostgreSQL database document.
 | [time.hyphenated-table](time.hyphenated-table.md) | 1 |  | BASE TABLE |
 | [time.referencing](time.referencing.md) | 3 |  | BASE TABLE |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| public.uuid_nil | uuid |  | FUNCTION |
+| public.uuid_ns_dns | uuid |  | FUNCTION |
+| public.uuid_ns_url | uuid |  | FUNCTION |
+| public.uuid_ns_oid | uuid |  | FUNCTION |
+| public.uuid_ns_x500 | uuid |  | FUNCTION |
+| public.uuid_generate_v1 | uuid |  | FUNCTION |
+| public.uuid_generate_v1mc | uuid |  | FUNCTION |
+| public.uuid_generate_v3 | uuid | namespace uuid, name text | FUNCTION |
+| public.uuid_generate_v4 | uuid |  | FUNCTION |
+| public.uuid_generate_v5 | uuid | namespace uuid, name text | FUNCTION |
+| public.update_updated | trigger |  | FUNCTION |
+| public.reset_comment | void | comment_id integer | PROCEDURE |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/sample/postgres95/README.md b/sample/postgres95/README.md
index 0252257db..35eec5feb 100644
--- a/sample/postgres95/README.md
+++ b/sample/postgres95/README.md
@@ -25,6 +25,22 @@ Sample PostgreSQL database document.
 | [time.hyphenated-table](time.hyphenated-table.md) | 1 |  | BASE TABLE |
 | [time.referencing](time.referencing.md) | 3 |  | BASE TABLE |
 
+## Stored procedures and functions
+
+| Name | ReturnType | Arguments | Type |
+| ---- | ------- | ------- | ---- |
+| public.uuid_nil | uuid |  | FUNCTION |
+| public.uuid_ns_dns | uuid |  | FUNCTION |
+| public.uuid_ns_url | uuid |  | FUNCTION |
+| public.uuid_ns_oid | uuid |  | FUNCTION |
+| public.uuid_ns_x500 | uuid |  | FUNCTION |
+| public.uuid_generate_v1 | uuid |  | FUNCTION |
+| public.uuid_generate_v1mc | uuid |  | FUNCTION |
+| public.uuid_generate_v3 | uuid | namespace uuid, name text | FUNCTION |
+| public.uuid_generate_v4 | uuid |  | FUNCTION |
+| public.uuid_generate_v5 | uuid | namespace uuid, name text | FUNCTION |
+| public.update_updated | trigger |  | FUNCTION |
+
 ## Relations
 
 ![er](schema.svg)
diff --git a/schema/json.go b/schema/json.go
index 4aaad0261..3f8d54ea6 100644
--- a/schema/json.go
+++ b/schema/json.go
@@ -17,6 +17,7 @@ func (s Schema) MarshalJSON() ([]byte, error) {
 		Desc      string      `json:"desc"`
 		Tables    []*Table    `json:"tables"`
 		Relations []*Relation `json:"relations"`
+		Functions []*Function `json:"functions"`
 		Driver    *Driver     `json:"driver"`
 		Labels    Labels      `json:"labels,omitempty"`
 	}{
@@ -25,10 +26,26 @@ func (s Schema) MarshalJSON() ([]byte, error) {
 		Tables:    s.Tables,
 		Relations: s.Relations,
 		Driver:    s.Driver,
+		Functions: s.Functions,
 		Labels:    s.Labels,
 	})
 }
 
+// MarshalJSON return custom JSON byte
+func (d Function) MarshalJSON() ([]byte, error) {
+	return json.Marshal(&struct {
+		Name       string `json:"name"`
+		ReturnType string `json:"return_type"`
+		Arguments  string `json:"arguments"`
+		Type       string `json:"type"`
+	}{
+		Name:       d.Name,
+		ReturnType: d.ReturnType,
+		Arguments:  d.Arguments,
+		Type:       d.Type,
+	})
+}
+
 // MarshalJSON return custom JSON byte
 func (d Driver) MarshalJSON() ([]byte, error) {
 	if d.Meta == nil {
diff --git a/schema/schema.go b/schema/schema.go
index f10ecd5f8..076e4afa2 100644
--- a/schema/schema.go
+++ b/schema/schema.go
@@ -104,6 +104,14 @@ type DriverMeta struct {
 	Dict          *dict.Dict `json:"dict,omitempty"`
 }
 
+// Function is the struct for tbls stored procedure/function information
+type Function struct {
+	Name       string `json:"name"`
+	ReturnType string `json:"return_type" yaml:"returnType"`
+	Arguments  string `json:"arguments"`
+	Type       string `json:"type"`
+}
+
 // Driver is the struct for tbls driver information
 type Driver struct {
 	Name            string      `json:"name"`
@@ -117,6 +125,7 @@ type Schema struct {
 	Desc      string      `json:"desc"`
 	Tables    []*Table    `json:"tables"`
 	Relations []*Relation `json:"relations"`
+	Functions []*Function `json:"functions"`
 	Driver    *Driver     `json:"driver"`
 	Labels    Labels      `json:"labels,omitempty"`
 }
diff --git a/testdata/ddl/mssql.sql b/testdata/ddl/mssql.sql
index fbd1fb4f8..984c4d8d6 100644
--- a/testdata/ddl/mssql.sql
+++ b/testdata/ddl/mssql.sql
@@ -13,6 +13,8 @@ DROP TABLE IF EXISTS user_options;
 DROP TABLE IF EXISTS users;
 DROP SCHEMA IF EXISTS administrator;
 DROP VIEW IF EXISTS "name with spaces";
+DROP FUNCTION IF EXISTS get_user;
+DROP PROC IF EXISTS What_DB_is_that;
 
 CREATE TABLE users (
   id int NOT NULL IDENTITY(1,1) PRIMARY KEY,
@@ -171,3 +173,17 @@ CREATE VIEW "name with spaces" AS (
   SELECT TOP 1 p.title
   FROM posts AS p
 );
+
+CREATE FUNCTION get_user (@userid int)
+RETURNS TABLE
+AS
+RETURN
+(
+  SELECT u.username, u.email
+  FROM users AS u
+  WHERE u.id = @userid
+);
+
+CREATE PROC What_DB_is_that @ID INT
+AS
+SELECT DB_NAME(@ID) AS ThatDB;
diff --git a/testdata/ddl/mysql.sql b/testdata/ddl/mysql/mysql.sql
similarity index 84%
rename from testdata/ddl/mysql.sql
rename to testdata/ddl/mysql/mysql.sql
index 42605b4fd..617273846 100644
--- a/testdata/ddl/mysql.sql
+++ b/testdata/ddl/mysql/mysql.sql
@@ -8,6 +8,8 @@ DROP TABLE IF EXISTS comments;
 DROP TABLE IF EXISTS posts;
 DROP TABLE IF EXISTS user_options;
 DROP TABLE IF EXISTS users;
+DROP PROCEDURE IF EXISTS GetAllComments;
+DROP FUNCTION IF EXISTS CustomerLevel;
 
 CREATE TABLE users (
   id int PRIMARY KEY AUTO_INCREMENT,
@@ -101,3 +103,32 @@ CREATE TABLE `hyphen-table` (
 CREATE TRIGGER update_posts_updated BEFORE UPDATE ON posts
   FOR EACH ROW
   SET NEW.updated = CURRENT_TIMESTAMP();
+
+DELIMITER //
+CREATE PROCEDURE GetAllComments()
+BEGIN
+	SELECT * FROM comments;
+END//
+DELIMITER ;
+
+DELIMITER $$
+CREATE FUNCTION CustomerLevel(
+	credit DECIMAL(10,2)
+) 
+RETURNS VARCHAR(20)
+DETERMINISTIC
+BEGIN
+    DECLARE customerLevel VARCHAR(20);
+
+    IF credit > 50000 THEN
+		SET customerLevel = 'PLATINUM';
+    ELSEIF (credit >= 50000 AND 
+			credit <= 10000) THEN
+        SET customerLevel = 'GOLD';
+    ELSEIF credit < 10000 THEN
+        SET customerLevel = 'SILVER';
+    END IF;
+	-- return the customer level
+	RETURN (customerLevel);
+END$$
+DELIMITER ;
diff --git a/testdata/ddl/postgres.sql b/testdata/ddl/postgres.sql
index a2c853a83..05281e4e4 100644
--- a/testdata/ddl/postgres.sql
+++ b/testdata/ddl/postgres.sql
@@ -219,3 +219,13 @@ CREATE TABLE time.referencing (
   CONSTRAINT referencing_bar_id FOREIGN KEY(bar_id) REFERENCES time.bar(id),
   CONSTRAINT referencing_ht_id FOREIGN KEY(ht_id) REFERENCES time."hyphenated-table"(id)
 );
+
+CREATE OR REPLACE PROCEDURE reset_comment (comment_id int) AS '
+  begin
+    update comments 
+    set comment = "updated" 
+    where id = comment_id;
+
+    commit;
+  end;
+' LANGUAGE plpgsql;
diff --git a/testdata/json_test_schema.json.golden b/testdata/json_test_schema.json.golden
index 0b52f4e52..ed7eda750 100644
--- a/testdata/json_test_schema.json.golden
+++ b/testdata/json_test_schema.json.golden
@@ -67,6 +67,7 @@
       "virtual": false
     }
   ],
+  "functions": [],
   "driver": {
     "name": "testdriver",
     "database_version": "1.0.0",
diff --git a/testdata/yaml_test_schema.yaml.golden b/testdata/yaml_test_schema.yaml.golden
index 71031fe79..e10ce96e4 100644
--- a/testdata/yaml_test_schema.yaml.golden
+++ b/testdata/yaml_test_schema.yaml.golden
@@ -46,6 +46,7 @@ relations:
   - b
   def: ""
   virtual: false
+functions: []
 driver:
   name: testdriver
   databaseVersion: 1.0.0