====== pears.TSQueryHistory ======
<WRAP center round info>
Generated schema reference. Regenerate this page from the SQL unload; keep hand-maintained business notes in the narrative namespace.
</WRAP>

===== Description =====
Record of changes to Timesheet Queries

===== Columns =====
^ Column ^ Type ^ Null ^ Default ^ Comment ^
| **TSQueryHistoryID** | char(20) | NOT NULL |  |  |
| TSQueryLogID | char(20) | NOT NULL |  |  |
| WhenEntered | timestamp | NULL | current timestamp |  |
| WhoEntered | char(20) | NULL |  |  |
| Notes | long varchar | NULL |  |  |
| OldStatus | char(1) | NULL |  |  |
| NewStatus | char(1) | NULL |  |  |

===== Primary Key =====
  * TSQueryHistoryID

===== Foreign Keys =====
^ Constraint ^ Columns ^ References ^ Delete/update action ^
| TSQueryLog | TSQueryLogID | [[database:tables:pears_tsquerylog|pears.TSQueryLog (TSQueryLogID)]] | NOT NULL;  |

===== Referenced By =====
  * No incoming foreign keys found.

===== Indexes =====
  * No indexes found.

===== Triggers =====
^ Name ^ Timing ^ Event ^
| TSQueryHistoryinsert | before | insert order 1 |

===== Original SQL =====
<code sql>
-- IQX database structure split by table
-- Source: IQXDatabaseStructure - with comments.sql
-- Table: "pears"."TSQueryHistory"
-- Table comment: Record of changes to Timesheet Queries
-- Statement count: 5

CREATE TABLE "pears"."TSQueryHistory" (
    "TSQueryHistoryID"               char(20) NOT NULL
   ,"TSQueryLogID"                   char(20) NOT NULL
   ,"WhenEntered"                    timestamp NULL DEFAULT current timestamp
   ,"WhoEntered"                     char(20) NULL
   ,"Notes"                          long varchar NULL
   ,"OldStatus"                      char(1) NULL
   ,"NewStatus"                      char(1) NULL
   ,PRIMARY KEY ("TSQueryHistoryID" ASC) 
)
go


COMMENT ON TABLE "pears"."TSQueryHistory" IS 
	'Record of changes to Timesheet Queries'
go


ALTER TABLE "pears"."TSQueryHistory"
    ADD NOT NULL FOREIGN KEY "TSQueryLog" ("TSQueryLogID" ASC)
    REFERENCES "pears"."TSQueryLog" ("TSQueryLogID")
go


create trigger "TSQueryHistoryinsert" before insert order 1 on
"pears"."TSQueryHistory"
referencing new as "new_tsq"
for each row
when("new_tsq"."WhoEntered" is null)
begin
  set "new_tsq"."WhoEntered" = "userstaffid"
exception
  when others then
    set "new_tsq"."WhoEntered" = null
end
go


COMMENT TO PRESERVE FORMAT ON TRIGGER "pears"."TSQueryHistory"."TSQueryHistoryinsert" IS 
{create trigger TSQueryHistoryinsert 
 before insert order 1 on
pears.TSQueryHistory
referencing new as new_tsq
for each row
when(new_tsq.WhoEntered is null)
begin
  set new_tsq.WhoEntered=userstaffid
exception
  when others then
    set new_tsq.WhoEntered=null
end
}
go
</code>