====== pears.TempProvTimeSheetHistory ======
<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 =====
History for provisional timesheets.

===== Columns =====
^ Column ^ Type ^ Null ^ Default ^ Comment ^
| **TempProvTimeSheetHistoryID** | char(20) | NOT NULL |  |  |
| TempProvTimeSheetID | char(20) | NULL |  |  |
| TempTimeSheetID | char(20) | NULL |  |  |
| SerialNumber | char(12) | NULL |  |  |
| OldStatus | integer | NULL |  |  |
| NewStatus | integer | NULL |  |  |
| Description | char(250) | NULL |  |  |
| StaffID | char(20) | NULL |  |  |
| WhenEntered | timestamp | NULL | current timestamp |  |
| ExternalUserID | char(40) | NULL |  |  |

===== Primary Key =====
  * TempProvTimeSheetHistoryID

===== Foreign Keys =====
^ Constraint ^ Columns ^ References ^ Delete/update action ^
| TempProvTimeSheet | TempProvTimeSheetID | [[database:tables:pears_tempprovtimesheet|pears.TempProvTimeSheet (TempProvTimeSheetID)]] | ON DELETE SET NULL |
| TempTimesheet | TempTimeSheetID | [[database:tables:pears_temptimesheet|pears.TempTimeSheet (TempTimeSheetID)]] | ON DELETE SET NULL |
| staff | StaffID | [[database:tables:pears_staff|pears.staff (staffid)]] | ON DELETE SET NULL |

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

===== Indexes =====
^ Name ^ Type ^ Columns ^ Detail ^
| TempProvTimesheetHistory_ExternalUserIDWhenEntered | Index | ExternalUserID, WhenEntered |  |

===== Triggers =====
  * No triggers found.

===== Original SQL =====
<code sql>
-- IQX database structure split by table
-- Source: IQXDatabaseStructure - with comments.sql
-- Table: "pears"."TempProvTimeSheetHistory"
-- Table comment: History for provisional timesheets.
-- Statement count: 6

CREATE TABLE "pears"."TempProvTimeSheetHistory" (
    "TempProvTimeSheetHistoryID"     char(20) NOT NULL
   ,"TempProvTimeSheetID"            char(20) NULL
   ,"TempTimeSheetID"                char(20) NULL
   ,"SerialNumber"                   char(12) NULL
   ,"OldStatus"                      integer NULL
   ,"NewStatus"                      integer NULL
   ,"Description"                    char(250) NULL
   ,"StaffID"                        char(20) NULL
   ,"WhenEntered"                    timestamp NULL DEFAULT current timestamp
   ,"ExternalUserID"                 char(40) NULL
   ,PRIMARY KEY ("TempProvTimeSheetHistoryID" ASC) 
)
go


COMMENT ON TABLE "pears"."TempProvTimeSheetHistory" IS 
	'History for provisional timesheets.'
go


ALTER TABLE "pears"."TempProvTimeSheetHistory"
    ADD FOREIGN KEY "TempProvTimeSheet" ("TempProvTimeSheetID" ASC)
    REFERENCES "pears"."TempProvTimeSheet" ("TempProvTimeSheetID")
    ON DELETE SET NULL
go


ALTER TABLE "pears"."TempProvTimeSheetHistory"
    ADD FOREIGN KEY "TempTimesheet" ("TempTimeSheetID" ASC)
    REFERENCES "pears"."TempTimeSheet" ("TempTimeSheetID")
    ON DELETE SET NULL
go


ALTER TABLE "pears"."TempProvTimeSheetHistory"
    ADD FOREIGN KEY "staff" ("StaffID" ASC)
    REFERENCES "pears"."staff" ("staffid")
    ON DELETE SET NULL
go


CREATE INDEX "TempProvTimesheetHistory_ExternalUserIDWhenEntered" ON "pears"."TempProvTimeSheetHistory"
    ( "ExternalUserID","WhenEntered" DESC )
go
</code>