1. Using SQL dummy table This query will subtract first number from second. Dual table is used as dummy table to complete the sql statement, do nothing though. select 36649-36598 from dual 2. Audit details get audit details select * from DBA_AUDIT_TRAIL WHERE OBJ_NAME='course_material' get audit count SELECT * FROM all_tab_modifications where TABLE_NAME = 'COURSE_MATERIAL' 3. Constraint details get constraint details select * from ALL_CONSTRAINTS where CONSTRAINT_NAME = 'SYS_C0012069'; get column name of constratint SELECT * FROM all_cons_columns where CONSTRAINT_NAME = 'SYS_C0012069'; see what constraints are referencing a table SELECT * FROM USER_CONSTRAINTS WHERE TABLE_NAME = "tabnam"; disable constraints alter table "COURSE" DISABLE constraint "FK_PARENT_ID"; get referecing table names select owner,constraint_name,const...