copyright 2007, information builders. slide 1 walter brengel information builders new jersey user...

Copyright 2007, Information Builders. Slide 1

Walter Brengel

Information Builders

New Jersey User Forum – June 2008

FOCUS to SQL DeMystified


FOCUS To SQL DeMystified - Agenda

SQL Overview SQL Traces Verb Objects Sorting Record Selection Defining Fields Combining Files


Generic Across Databases

Language Used By The Relational Database Management System (RDBMS).

Differences:

WHERE Masking Using LIKE (% vs *)

Functions

Mostly – Generic Statement Will Work Across Databases

Allows Selecting, Inserting And Updating Records Into A Table

FOCUS To SQL Demystified – What IS SQL?


select t1.column1, sum(t1.column2) from tablename t1 where t1.columnname = 'value'group by t1.column1order by t1.column1;

Simple Select Statement:

FOCUS To SQL DeMystified – What Is SQL?


SET TRACEOFF=ALLSET TRACEON=SQLAGGR//CLIENTSET TRACEON=STMTRACE//CLIENTSET TRACESTAMP=OFFSET TRACEUSER=ONSET XRETRIEVAL=OFF

How To See The SQL Generated By FOCUS:

FOCUS To SQL DeMystified – TRACE Settings


SQLAGGR

Displays Data Adapter‑to‑RDBMS Aggregation And Join Analysis.

Used Only For Focus Reporting Operations Such As Table, Graph, And Match File.

If The Data Adapter Is Able To Pass All Join, Sort, And Aggregation Operations, The SQLAGGR Trace Is Not Populated. The Message "AGGREGATION DONE..." Appears.

Formerly FSTRACE3.

FOCUS To SQL Demystified – TRACE Settings


STMTRACE Records SQL SELECT Statements Generated By The Data Adapter For

FOCUS Report Requests. Modify Procedures, Or Direct Sql Passthru Select Requests. It Also

Records The SQL Data. Definition Language (DDL) Statements Generated By The Create File

Command. Display The Trace Information Online. Store It In A File Or Sequential Data Set. The Data Adapter Terminates Its Generated SQL Select Statements With

A Semicolon. You Can Submit Them To The RDBMS For Processing, Interactively Or In

Batch. Use STMTRACE for:

Debugging. Performance Tuning. Capturing SQL Data Definition And Data Manipulation Statements To

Reuse. Formerly FSTRACE4.

FOCUS To SQL DeMystified – TRACE Settings


MASTER:

FILENAME=ORDERS, SUFFIX=SQLMSS , $ SEGMENT=ORDERS, SEGTYPE=S0, $ FIELDNAME=ORDERID, ALIAS=OrderID, USAGE=I11, ACTUAL=I4, FIELDTYPE=R,$ FIELDNAME=CUSTOMERID, ALIAS=CustomerID, USAGE=A5, ACTUAL=A5, MISSING=ON, $ FIELDNAME=EMPLOYEEID, ALIAS=EmployeeID, USAGE=I11, ACTUAL=I4, MISSING=ON, $ FIELDNAME=ORDERDATE, ALIAS=OrderDate, USAGE=HYYMDs, ACTUAL=HYYMDs, MISSING=ON, $ FIELDNAME=REQUIREDDATE, ALIAS=RequiredDate, USAGE=HYYMDs, ACTUAL=HYYMDs, MISSING=ON, $ FIELDNAME=SHIPPEDDATE, ALIAS=ShippedDate, USAGE=HYYMDs, ACTUAL=HYYMDs, MISSING=ON, $ FIELDNAME=SHIPVIA, ALIAS=ShipVia, USAGE=I11, ACTUAL=I4, MISSING=ON, $ FIELDNAME=FREIGHT, ALIAS=Freight, USAGE=P21.4, ACTUAL=P10, MISSING=ON, $ FIELDNAME=SHIPNAME, ALIAS=ShipName, USAGE=A40V, ACTUAL=A40V, MISSING=ON, $ FIELDNAME=SHIPADDRESS, ALIAS=ShipAddress, USAGE=A60V, ACTUAL=A60V, MISSING=ON, $ FIELDNAME=SHIPCITY, ALIAS=ShipCity, USAGE=A15V, ACTUAL=A15V, MISSING=ON, $ FIELDNAME=SHIPREGION, ALIAS=ShipRegion, USAGE=A15V, ACTUAL=A15V, MISSING=ON, $ FIELDNAME=SHIPPOSTALCODE, ALIAS=ShipPostalCode, USAGE=A10V, ACTUAL=A10V, MISSING=ON, $ FIELDNAME=SHIPCOUNTRY, ALIAS=ShipCountry, USAGE=A15V, ACTUAL=A15V, MISSING=ON, $

Northwind Orders Table

ACCESS:

SEGNAME=ORDERS, TABLENAME=Northwind.dbo.Orders, CONNECTION=CON01, KEYS=1, $

FOCUS To SQL DeMystified


TABLE FILE ORDERSPRINT ORDERID CUSTOMERID EMPLOYEEID ORDERDATEEND

FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2594 - AGGREGATION IS NOT APPLICABLE TO THE VERB USED SELECT T1."OrderID",T1."CustomerID",T1."EmployeeID", T1."OrderDate" FROM Northwind.dbo.Orders T1; ...RETRIEVAL KILLED 0 NUMBER OF RECORDS IN TABLE= 0 LINES= 0

FOCUS To SQL DeMystified – PRINT


TABLE FILE ORDERSPRINT ORDERID CUSTOMERID ORDERDATEBY EMPLOYEEIDEND

FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2594 - AGGREGATION IS NOT APPLICABLE TO THE VERB USED SELECT T1."OrderID",T1."CustomerID",T1."EmployeeID", T1."OrderDate" FROM Northwind.dbo.Orders T1 ORDER BY T1."EmployeeID"; ...RETRIEVAL KILLED 0 NUMBER OF RECORDS IN TABLE= 0 LINES= 0

FOCUS To SQL DeMystified – Sorting


Master File:

FILENAME=ORDER_DETAILS, SUFFIX=SQLMSS , $ SEGMENT=ORDER_DETAILS, SEGTYPE=S0, $ FIELDNAME=ORDERID, ALIAS=OrderID, USAGE=I11, ACTUAL=I4, $ FIELDNAME=PRODUCTID, ALIAS=ProductID, USAGE=I11, ACTUAL=I4, $ FIELDNAME=UNITPRICE, ALIAS=UnitPrice, USAGE=P21.4, ACTUAL=P10, $ FIELDNAME=QUANTITY, ALIAS=Quantity, USAGE=I6, ACTUAL=I2, $ FIELDNAME=DISCOUNT, ALIAS=Discount, USAGE=D20.2, ACTUAL=D8, $

Access File:

SEGNAME=ORDER_DETAILS, TABLENAME=Northwind.dbo."Order Details", CONNECTION=CON01, KEYS=2, $

FOCUS To SQL DeMystified


TABLE FILE ORDER_DETAILSSUM UNITPRICE QUANTITYBY ORDERIDEND

FOC2589 - AGGREGATION DONE BUT MAY PRODUCE INCONSISTENT RESULTS FOC2612 - OVERFLOW MAY OCCUR WHEN SUMMING AN I2 FIELD WITH USAGE I, D OR P SELECT T1."OrderID", SUM(T1."UnitPrice"), SUM(T1."Quantity") FROM Northwind.dbo."Order Details" T1 GROUP BY T1."OrderID" ORDER BY T1."OrderID";

FOCUS To SQL DeMystified – SUM



? 2589

(FOC2589) AGGREGATION DONE BUT MAY PRODUCE INCONSISTENT RESULTS %1%2%3%4This is the first line of the Interface FSTRACE3 output that is generatedwhen RDBMS aggregation has been performed, but may produce different re-sults than FOCUS would have if optimization had been disabled and FOCUShad managed the JOINs and aggregation. Examine report results carefully.

FOCUS To SQL DeMystified – SUM


TABLE FILE ORDER_DETAILSSUM UNITPRICE QUANTITYCOMPUTE TTLPRICE/D12.2=UNITPRICE * QUANTITY;BY ORDERIDEND


FOCUS To SQL DeMystified – COMPUTE


DEFINE FILE ORDER_DETAILSTTLPRICE/D12.2=UNITPRICE * QUANTITY;ENDTABLE FILE ORDER_DETAILSSUM UNITPRICE QUANTITY TTLPRICEBY ORDERIDEND

FOC2589 - AGGREGATION DONE BUT MAY PRODUCE INCONSISTENT RESULTS FOC2612 - OVERFLOW MAY OCCUR WHEN SUMMING AN I2 FIELD WITH USAGE I, D OR P SELECT T1."OrderID", SUM(T1."UnitPrice"), SUM(T1."Quantity"), SUM((T1."UnitPrice" * T1."Quantity")) FROM Northwind.dbo."Order Details" T1 GROUP BY T1."OrderID" ORDER BY T1."OrderID";

FOCUS To SQL DeMystified – DEFINE


DEFINE FILE ORDER_DETAILSTTLPRICE/D12.2=UNITPRICE * QUANTITY;COSTFLAG/A10=IF TTLPRICE GT 5000.00 THEN 'HIGH' ELSE IF TTLPRICE GT 1000.00 THEN 'MEDIUM'

ELSE 'LOW';ENDTABLE FILE ORDER_DETAILSSUM UNITPRICE QUANTITY TTLPRICEBY ORDERIDWHERE COSTFLAG EQ 'HIGH'END

SELECT T1."OrderID", SUM(T1."UnitPrice"), SUM(T1."Quantity"), SUM((T1."UnitPrice" * T1."Quantity")) FROM Northwind.dbo."Order Details" T1 WHERE ((CASE WHEN ((T1."UnitPrice" * T1."Quantity") > 5000) THEN 'HIGH' WHEN ((T1."UnitPrice" * T1."Quantity") > 1000) THEN 'MEDIUM' ELSE 'LOW' END) = 'HIGH') GROUP BY T1."OrderID" ORDER BY T1."OrderID";

FOCUS To SQL DeMystified – DEFINE


SQL engine ?

(FOC1450) CURRENT SQLMSS INTERFACE SETTINGS ARE : (FOC1656) DEFAULT SERVER NAME - : CON01 cp01211dt1\dt1_sql (FOC1502) USERID AND PASSWORD ARE - : <Trusted> (FOC1758) CURRENT ISOLATION LEVEL IS - : RC (FOC1496) AUTODISCONNECT OPTION IS - : ON FIN (FOC1499) AUTOCOMMIT OPTION IS - : ON COMMAND (FOC1491) FETCH BUFFERING FACTOR - : 100 (FOC1755) CURSORS TYPE IS - : SERVER (FOC1723) TRANSACTION MODE IS - : LOCAL (FOC1441) WRITE FUNCTIONALITY IS - : ON (FOC1445) OPTIMIZATION OPTION IS - : ON (FOC1763) IF-THEN-ELSE OPTIMIZATION IS - : OFF (FOC1709) NCHAR OPTION IS - : SBCS

FOCUS To SQL DeMystified – Settings


SQL SQLMSS SET OPTIFTHENELSE ONDEFINE FILE ORDER_DETAILSTTLPRICE/D12.2=UNITPRICE * QUANTITY;COSTFLAG/A10=IF TTLPRICE GT 5000.00 THEN 'HIGH' ELSE IF TTLPRICE GT 1000.00 THEN 'MEDIUM'

ELSE 'LOW';ENDTABLE FILE ORDER_DETAILSSUM UNITPRICE QUANTITY TTLPRICEBY ORDERIDWHERE COSTFLAG EQ 'HIGH'END

SELECT T1."OrderID", SUM(T1."UnitPrice"), SUM(T1."Quantity"), SUM((T1."UnitPrice" * T1."Quantity")) FROM Northwind.dbo."Order Details" T1 WHERE ((((T1."UnitPrice" * T1."Quantity") > 5000))) GROUP BY T1."OrderID" ORDER BY T1."OrderID";

FOCUS To SQL DeMystified – OPTIFTHENELSE


Type of JOINS

INNER

FULL

LEFT OUTER

FOCUS To SQL DeMystified – JOINs


MASTER FILE:

FILENAME=EMPLOYEETERRITORIES, SUFFIX=SQLMSS , $ SEGMENT=EMPLOYEETERRITORIES, SEGTYPE=S0, $ FIELDNAME=EMPLOYEEID, ALIAS=EmployeeID, USAGE=I11, ACTUAL=I4, $ FIELDNAME=TERRITORYID, ALIAS=TerritoryID, USAGE=A20V, ACTUAL=A20V, $

MASTER FILE:

FILENAME=TERRITORIES, SUFFIX=SQLMSS , $ SEGMENT=TERRITORIES, SEGTYPE=S0, $ FIELDNAME=TERRITORYID, ALIAS=TerritoryID, USAGE=A20V, ACTUAL=A20V, $ FIELDNAME=TERRITORYDESCRIPTION, ALIAS=TerritoryDescription, USAGE=A50, ACTUAL=A50, $ FIELDNAME=REGIONID, ALIAS=RegionID, USAGE=I11, ACTUAL=I4, $

FOCUS To SQL DeMystified – JOINs


JOIN INNER TERRITORYID IN EMPLOYEETERRITORIES TO TERRITORYID IN TERRITORIES AS J1TABLE FILE EMPLOYEETERRITORIESPRINT TERRITORYDESCRIPTIONBY EMPLOYEEIDBY TERRITORYIDEND

FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2594 - AGGREGATION IS NOT APPLICABLE TO THE VERB USED SELECT T1."EmployeeID",T1."TerritoryID", T2."TerritoryDescription" FROM Northwind.dbo.EmployeeTerritories T1,Northwind.dbo.Territories T2 WHERE (T2."TerritoryID" = T1."TerritoryID") ORDER BY T1."EmployeeID",T1."TerritoryID";

FOCUS To SQL DeMystified – INNER JOINs


JOIN LEFT_OUTER TERRITORYID IN EMPLOYEETERRITORIES TO TERRITORYID IN TERRITORIES AS J1 ENDTABLE FILE EMPLOYEETERRITORIESPRINT TERRITORYDESCRIPTIONBY EMPLOYEEIDBY TERRITORYIDEND

FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2594 - AGGREGATION IS NOT APPLICABLE TO THE VERB USED SELECT T1."EmployeeID",T1."TerritoryID",T2."TerritoryID", T2."TerritoryDescription" FROM ( Northwind.dbo.EmployeeTerritories T1 LEFT OUTER JOIN Northwind.dbo.Territories T2 ON T2."TerritoryID" = T1."TerritoryID" ) ORDER BY T1."EmployeeID",T1."TerritoryID";

FOCUS To SQL DeMystified – LEFT OUTER JOIN


TABLE FILE EMPLOYEETERRITORIESPRINT EMPLOYEEID TERRITORYIDON TABLE HOLDENDJOIN TERRITORYID IN HOLD TO TERRITORYID IN TERRITORIES AS J1TABLE FILE HOLDPRINT TERRITORYDESCRIPTIONBY EMPLOYEEIDBY TERRITORYIDEND

FOCUS To SQL DeMystified – JOIN from HOLD


FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2594 - AGGREGATION IS NOT APPLICABLE TO THE VERB USED SELECT T1."EmployeeID",T1."TerritoryID" FROM Northwind.dbo.EmployeeTerritories T1; ...RETRIEVAL KILLED 0 NUMBER OF RECORDS IN TABLE= 0 LINES= 0

TABLE FILE EMPLOYEETERRITORIESPRINT EMPLOYEEID TERRITORYIDON TABLE HOLDENDJOIN TERRITORYID IN HOLD TO TERRITORYID IN TERRITORIES AS J1TABLE FILE HOLDPRINT TERRITORYDESCRIPTIONBY EMPLOYEEIDBY TERRITORYIDEND



TABLE FILE EMPLOYEETERRITORIESPRINT EMPLOYEEID TERRITORYIDON TABLE HOLDEND

FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2599 - NON-SQL SEGMENT IN HIERARCHY (OTHER INTERFACE PRESENT) SELECT T2."TerritoryDescription" FROM Northwind.dbo.Territories T2 WHERE (T2."TerritoryID" = ?); ...RETRIEVAL KILLED 0 NUMBER OF RECORDS IN TABLE= 0 LINES= 0

JOIN TERRITORYID IN HOLD TO TERRITORYID IN TERRITORIES AS J1TABLE FILE HOLDPRINT TERRITORYDESCRIPTIONBY EMPLOYEEIDBY TERRITORYIDEND



DEFINE FILE ORDER_DETAILSQTRDEF/P10.3=QUANTITY / 4;ENDTABLE FILE ORDER_DETAILSSUM QUANTITY QTRDEFCOMPUTE QTRCOMP/P10.3=QUANTITY / 4; BY ORDERIDWHERE ORDERID LE 10250END

FOC2589 - AGGREGATION DONE BUT MAY PRODUCE INCONSISTENT RESULTS FOC2612 - OVERFLOW MAY OCCUR WHEN SUMMING AN I2 FIELD WITH USAGE I, D OR P SELECT T1."OrderID", SUM(T1."Quantity"), SUM((T1."Quantity" / 4)) FROM Northwind.dbo."Order Details" T1 WHERE (T1."OrderID" <= 10250) GROUP BY T1."OrderID" ORDER BY T1."OrderID"; 0 NUMBER OF RECORDS IN TABLE= 3 LINES= 3

ORDERID QUANTITY QTRDEF QTRCOMP ------- -------- ------ ------- 10248 27 6.000 6.750 10249 49 12.000 12.250 10250 60 13.000 15.000

FOCUS To SQL DeMystified – INTEGER Arithmetic


DEFINE FILE ORDER_DETAILSQTRDEF/P10.3=QUANTITY / 4;ENDTABLE FILE ORDER_DETAILSSUM QUANTITY QTRDEFCOMPUTE QTRCOMP/P10.3=QUANTITY / 4; BY ORDERIDSUM QUANTITY QTRDEFBY ORDERIDBY PRODUCTIDWHERE ORDERID LE 10250END

ORDERID QUANTITY QTRDEF QTRCOMP PRODUCTID QUANTITY QTRDEF ------- -------- ------ ------- --------- -------- ------ 10248 27 6.000 6.750 11 12 3.000 42 10 2.000 72 5 1.000 10249 49 12.000 12.250 14 9 2.000 51 40 10.000 10250 60 13.000 15.000 41 10 2.000 51 35 8.000 65 15 3.000



SQL SQLMSS SET OPT NOAGGRDEFINE FILE ORDER_DETAILSQTRDEF/P10.3=QUANTITY / 4;ENDTABLE FILE ORDER_DETAILSSUM QUANTITY QTRDEFCOMPUTE QTRCOMP/P10.3=QUANTITY / 4; BY ORDERIDWHERE ORDERID LE 10250END

FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2616 - AGGREGATION DISABLED BY USER SELECT T1."OrderID",T1."Quantity" FROM Northwind.dbo."Order Details" T1 WHERE (T1."OrderID" <= 10250) ORDER BY T1."OrderID";

ORDERID QUANTITY QTRDEF QTRCOMP ------- -------- ------ ------- 10248 27 6.750 6.750 10249 49 12.250 12.250 10250 60 15.000 15.000



FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2616 - AGGREGATION DISABLED BY USER SELECT T1."OrderID",T1."Quantity" FROM Northwind.dbo."Order Details" T1 WHERE (T1."OrderID" <= 10250) ORDER BY T1."OrderID";

FOC2589 - AGGREGATION DONE BUT MAY PRODUCE INCONSISTENT RESULTS FOC2612 - OVERFLOW MAY OCCUR WHEN SUMMING AN I2 FIELD WITH USAGE I, D OR P SELECT T1."OrderID", SUM(T1."Quantity"), SUM((T1."Quantity" / 4)) FROM Northwind.dbo."Order Details" T1 WHERE (T1."OrderID" <= 10250) GROUP BY T1."OrderID" ORDER BY T1."OrderID";

SQL engine SET OPT AGGR

SQL engine SET OPT NOAGGR

FOCUS To SQL DeMystified – SQLAGGR


Master File:

FILENAME=ORDERS, SUFFIX=SQLMSS , $ SEGMENT=ORDERS, SEGTYPE=S0, $ FIELDNAME=ORDERID, ALIAS=OrderID, USAGE=I11, ACTUAL=I4, FIELDTYPE=R, $ FIELDNAME=CUSTOMERID, ALIAS=CustomerID, USAGE=A5, ACTUAL=A5, MISSING=ON, $ FIELDNAME=EMPLOYEEID, ALIAS=EmployeeID, USAGE=I11, ACTUAL=I4, MISSING=ON, $ FIELDNAME=ORDERDATE, ALIAS=OrderDate, USAGE=HYYMDs, ACTUAL=HYYMDs, MISSING=ON, $ FIELDNAME=REQUIREDDATE, ALIAS=RequiredDate, USAGE=HYYMDs, ACTUAL=HYYMDs, MISSING=ON, $ FIELDNAME=SHIPPEDDATE, ALIAS=ShippedDate, USAGE=HYYMDs, ACTUAL=HYYMDs, MISSING=ON, $ FIELDNAME=SHIPVIA, ALIAS=ShipVia, USAGE=I11, ACTUAL=I4, MISSING=ON, $ FIELDNAME=FREIGHT, ALIAS=Freight, USAGE=P21.4, ACTUAL=P10, MISSING=ON, $ FIELDNAME=SHIPNAME, ALIAS=ShipName, USAGE=A40V, ACTUAL=A40V, MISSING=ON, $ FIELDNAME=SHIPADDRESS, ALIAS=ShipAddress, USAGE=A60V, ACTUAL=A60V, MISSING=ON, $ FIELDNAME=SHIPCITY, ALIAS=ShipCity, USAGE=A15V, ACTUAL=A15V, MISSING=ON, $ FIELDNAME=SHIPREGION, ALIAS=ShipRegion, USAGE=A15V, ACTUAL=A15V, MISSING=ON, $ FIELDNAME=SHIPPOSTALCODE, ALIAS=ShipPostalCode, USAGE=A10V, ACTUAL=A10V, MISSING=ON, $ FIELDNAME=SHIPCOUNTRY, ALIAS=ShipCountry, USAGE=A15V, ACTUAL=A15V, MISSING=ON, $

Northwind Orders table

Access File:


FOCUS To SQL DeMystified – DATE Conditions


DEFINE FILE ORDERSORDERDT/YYMD=HDATE(ORDERDATE,'YYMD');END

TABLE FILE ORDERSPRINT ORDERID EMPLOYEEID CUSTOMERID ORDERDATEWHERE ORDERDT EQ '1996/07/08'END

FOC2598 - FOCUS IF/WHERE TEST CANNOT BE PASSED TO SQL : ORDERDT FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2594 - AGGREGATION IS NOT APPLICABLE TO THE VERB USED SELECT T1."OrderID",T1."CustomerID",T1."EmployeeID", T1."OrderDate" FROM Northwind.dbo.Orders T1;

ORDERID EMPLOYEEID CUSTOMERID ORDERDATE ------- ---------- ---------- --------- 10250 4 HANAR 1996/07/08 00:00:00.000 10251 3 VICTE 1996/07/08 00:00:00.000



? STAT

STATISTICS OF LAST COMMAND RECORDS = 2 SEGS DELTD = 0 LINES = 2 NOMATCH = 0 BASEIO = 0 DUPLICATES = 0 SORTIO = 0 FORMAT ERRORS = 0 SORT PAGES = 0 INVALID CONDTS = 0 READS = 830 OTHER REJECTS = 0 TRANSACTIONS = 0 CACHE READS = 0 ACCEPTED = 0 MERGES = 0 SEGS INPUT = 0 SORT STRINGS = 0 SEGS CHNGD = 0 INDEXIO = 0 INTERNAL MATRIX CREATED: YES AUTOINDEX USED: NO SORT USED: SQL AUTOPATH USED: NO AGGREGATION BY EXT.SORT: NO HOLD FROM EXTERNAL SORT: NO

FOCUS To SQL DeMystified – Report Statistics


Master File:

FILENAME=ORDERS, SUFFIX=SQLMSS , $ SEGMENT=ORDERS, SEGTYPE=S0, $ FIELDNAME=ORDERID, ALIAS=OrderID, USAGE=I11, ACTUAL=I4, FIELDTYPE=R, $ FIELDNAME=CUSTOMERID, ALIAS=CustomerID, USAGE=A5, ACTUAL=A5, MISSING=ON, $ FIELDNAME=EMPLOYEEID, ALIAS=EmployeeID, USAGE=I11, ACTUAL=I4, MISSING=ON, $ FIELDNAME=ORDERDATE, ALIAS=OrderDate, USAGE=HYYMDs, ACTUAL=HYYMDs, MISSING=ON, $ FIELDNAME=ORDERDT, ALIAS=OrderDate, USAGE=YYMD, ACTUAL=DATE, MISSING=ON, $

Northwind Orders table

Access File:




TABLE FILE ORDERSPRINT ORDERID EMPLOYEEID CUSTOMERID ORDERDATEWHERE ORDERDT EQ '1996/07/08'END

FOC2590 - AGGREGATION NOT DONE FOR THE FOLLOWING REASON: FOC2594 - AGGREGATION IS NOT APPLICABLE TO THE VERB USED SELECT T1."OrderID",T1."CustomerID",T1."EmployeeID", T1."OrderDate",T1."OrderDate" FROM Northwind.dbo.Orders T1 WHERE (T1."OrderDate" = '19960708');

ORDERID EMPLOYEEID CUSTOMERID ORDERDATE ------- ---------- ---------- --------- 10250 4 HANAR 1996/07/08 00:00:00.000 10251 3 VICTE 1996/07/08 00:00:00.000



? STAT

STATISTICS OF LAST COMMAND RECORDS = 2 SEGS DELTD = 0 LINES = 2 NOMATCH = 0 BASEIO = 0 DUPLICATES = 0 SORTIO = 0 FORMAT ERRORS = 0 SORT PAGES = 0 INVALID CONDTS = 0 READS = 2 OTHER REJECTS = 0 TRANSACTIONS = 0 CACHE READS = 0 ACCEPTED = 0 MERGES = 0 SEGS INPUT = 0 SORT STRINGS = 0 SEGS CHNGD = 0 INDEXIO = 0 INTERNAL MATRIX CREATED: YES AUTOINDEX USED: NO SORT USED: SQL AUTOPATH USED: NO AGGREGATION BY EXT.SORT: NO HOLD FROM EXTERNAL SORT: NO

FOCUS To SQL DeMystified – Report Statistics


FOCUS To SQL DeMystified - Review

SQL Overview SQL Traces Verb Objects Sorting Record Selection Defining Fields Combining Files


Thanks for Coming

FOCUS To SQL DeMystified – Questions??

copyright 2007, information builders. slide 1 walter brengel information builders new jersey user...

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