c# - How to query the column description of a table? -

c# - How to query the column description of a table? -

Is there a question for getting a list of columns with foreign key reference for its primary key?

  select column_name, data_type, DBTIME.information_schema.column from CHARct_maximum_length where table_name = 'table name'    I query datatype and column Getting the maximum length. With this I need to know its foreign key primary key reference. Please help ... 
   select K_Table = FK.TABLE_NAME, FK_Column = CU.COLUMN_NAME, PK_Tol = PK.TABLE_NAME, PK_Column = PT.COLUMN_NAME, INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C INONER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME from Constraint_Name = C.CONSTRAINT_NAME INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON .UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME INNER JOIN (Selection i1.TABLE_NAME, i2.COLUMN_NAME Contact Information Sciences. TABLE_CONSTRAINTS i1 INNER JOIN INFORMATION_SCHEMA.K EY_COLUMN_USAGE i2 ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME WHERE i1.CONSTRAINT_TYPE = 'Primary Key') PT on PT.TABLE_NAME = PK.TABLE_NAME    

 


  







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