Oracle事例
1.增加主键 altertableTABLE_NAMEaddconstraintKEY_NAMEprimarykey(TABLE_COLUMN); 指定表空间 altertableTABLE_NAMEaddconstraintKEY_NAMEprimarykey(TABLE_COLUMN)usingindextablespaceTABLE_SPACE_NAME; 2.增加外键 altertableTABLE_NAMEaddconstraintFK_NAMEforeignkey(TABLE_COLUMN)referencesK