In this post, I am sharing different scripts to find table dependency for Foreign Key
Constraint, View and Stored Procedure of MySQL.

Database Architecture or Database Developer has to find table dependency before any DDL changes on the Tables.

Below are three different scripts:

/*Find Table Dependency in Foreign Key Constraint.*/
SELECT 
     Constraint_Type
    ,Constraint_Name
    ,Table_Schema
    ,Table_Name
FROM information_schema.table_constraints
WHERE Constraint_Type = 'FOREIGN KEY'
    AND Table_Name = 'Any_Table'
    AND Table_Schema ='db_Name';

/*Find Table Dependency in Views.*/
SELECT *
FROM information_schema.views 
WHERE Table_Schema='db_name' 
  AND Table_Name = 'table_name'

/*Find Table Dependency in Stored Procedure.*/
SELECT 
    Table_Schema
    ,Table_Name
    ,Table_Type
    ,Engine
    ,Routine_Name
    ,Routine_Schema
    ,Routine_Type
FROM information_schema.tables
 INNER JOIN information_schema.routines
    ON routines.routine_definition 
    LIKE  Concat('%', tables.table_name, '%')
WHERE Table_Schema ='db_name'

In the previous post, I Have provided three different scripts to find Object Dependency in the current database.

In this post I share one SQL script to find Cross Database Object Dependency in SQL Server.

SELECT  
	OBJECT_NAME (referencing_id) AS ReferencedObjects
	,referenced_database_name
	,referenced_schema_name
	,referenced_entity_name
FROM sys.sql_expression_dependencies
WHERE referenced_database_name IS NOT NULL
AND is_ambiguous = 0;

As a DBA or Database Developer, we need to find the object dependency into the current database.

Finding the Object Dependency is very useful before any alteration on object like ALTER, DROP.

Below are three reference scripts to find the object dependency.

SELECT OBJECT_NAME(OBJECT_ID)
  FROM sys.sql_modules
 WHERE DEFINITION LIKE '%tbl_Employee%'
GO

SELECT DISTINCT 
	SO.Name
	,SO.XType AS ObjectType
	,SC.TEXT AS ObjectDefinition
FROM syscomments AS SC
INNER JOIN sysobjects AS SO ON SC.id=SO.id
WHERE SC.TEXT LIKE '%tablename%'
GO

SELECT 
    referencing_schema_name, referencing_entity_name, referencing_id, 
    referencing_class_desc, is_caller_dependent
FROM 
    sys.dm_sql_referencing_entities ('SchemaName.TableName', 'Object');
GO