the order of join condition will change the execution

Old SQL:

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select a.swaptradeid, a.tradedate selltradedate, a.settledate sellsettledate, a.counterpartycd, a.quantity sellquantity,

a.price sellprice, b.facilitydesc facilitytype, b.loanxid, b.facilitycusip, c.issuername, d.CURRPERIODEFFECTIVESTARTDATE,

e.liquidationamount, e.realizedgain, f.positionid, f.tradedate buytradedate, f.settledate buysettledate, f.purchaseprice,

f.commitmentamount, g.TRSSETTLEDDATE,

a.tradeccy, d.currency,

pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency, f.tradedate) init_spotrate,

pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency, a.settledate) settle_spotrate,

pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency) latest_spotrate,

pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency, a.tradedate) sell_spotrate

from swaptrade_eod a,

loanfacility_eod b,

loandeal_eod c,

pvtrs_eod d,

ptrsliquidation_eod e,

ptrsposition_eod f,

TradeExtend g

where a.ptrsid = 7

and a.tradeside = 'S'

and a.loanfacilityid = b.loanfacilityid

and b.loandealid = c.loandealid

and a.ptrsid = d.pvtrsid

and a.swaptradeid = e.SELLTRADEID(+)

and e.positionid = f.positionid (+)

and a.closedate = b.closedate

and a.closedate = c.closedate

and a.closedate = d.closedate

and a.closedate = e.closedate(+)

and e.closedate = f.closedate(+)

and a.closedate = pkg_eod_util.getlastclosedate()

and a.LOANTRADEID = g.LOANTRADEID (+)

order by a.tradedate asc, a.tradeside asc, a.lqtticketid asc, e.positionid asc

execution plan for old SQL

==============================

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| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time |

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| 0 | SELECT STATEMENT | | 8750 | 2349K| | 23689 (2)| 00:04:45 |

| 1 | SORT ORDER BY | | 8750 | 2349K| 2608K| 23689 (2)| 00:04:45 |

|* 2 | HASH JOIN OUTER | | 8750 | 2349K| 2088K| 23168 (2)| 00:04:39 |

|* 3 | HASH JOIN OUTER | | 8750 | 1982K| | 18074 (3)| 00:03:37 |

|* 4 | HASH JOIN OUTER | | 3859 | 753K| | 2280 (2)| 00:00:28 |

|* 5 | HASH JOIN | | 3859 | 693K| | 2141 (2)| 00:00:26 |

|* 6 | HASH JOIN | | 3898 | 563K| | 1599 (1)| 00:00:20 |

| 7 | NESTED LOOPS | | | | | | |

| 8 | NESTED LOOPS | | 3898 | 392K| | 493 (1)| 00:00:06 |

| 9 | TABLE ACCESS BY INDEX ROWID| PVTRS_EOD | 24 | 600 | | 19 (0)| 00:00:01 |

|* 10 | INDEX SKIP SCAN | SYS_C00435176 | 24 | | | 12 (0)| 00:00:01 |

|* 11 | INDEX RANGE SCAN | SWAPTRD_EOD_COMP1_IDX | 162 | | | 2 (0)| 00:00:01 |

| 12 | TABLE ACCESS BY INDEX ROWID | SWAPTRADE_EOD | 162 | 12636 | | 25 (0)| 00:00:01 |

| 13 | TABLE ACCESS FULL | LOANFACILITY_EOD | 105K| 4638K| | 1104 (1)| 00:00:14 |

| 14 | TABLE ACCESS FULL | LOANDEAL_EOD | 59924 | 2106K| | 540 (2)| 00:00:07 |

| 15 | TABLE ACCESS FULL | TRADEEXTEND | 55289 | 863K| | 138 (2)| 00:00:02 |

| 16 | TABLE ACCESS FULL | PTRSLIQUIDATION_EOD | 5281K| 161M| | 15729 (2)| 00:03:09 |

| 17 | TABLE ACCESS FULL | PTRSPOSITION_EOD | 609K| 24M| | 3390 (2)| 00:00:41 |

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New SQL:

================================

select a.swaptradeid, a.tradedate selltradedate, a.settledate sellsettledate, a.counterpartycd

, a.quantity sellquantity, a.price sellprice, a.tradeccy

, b.facilitydesc facilitytype, b.loanxid, b.facilitycusip

, c.issuername

, d.CURRPERIODEFFECTIVESTARTDATE, d.currency

, e.liquidationamount, e.realizedgain

, f.positionid, f.tradedate buytradedate, f.settledate buysettledate, f.purchaseprice, f.commitmentamount

, g.TRSSETTLEDDATE

, pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency, f.tradedate) init_spotrate

, pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency, a.settledate) settle_spotrate

, pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency) latest_spotrate

, pkg_asset_eod.getlastfxrate(a.tradeccy, d.currency, a.tradedate) sell_spotrate

from swaptrade_eod a

, loanfacility_eod b

, loandeal_eod c

, pvtrs_eod d

, ptrsliquidation_eod e

, ptrsposition_eod f

, TradeExtend g

where a.ptrsid = 7

and a.tradeside = 'S'

and a.closedate = pkg_eod_util.getlastclosedate()

and b.closedate = pkg_eod_util.getlastclosedate()

and b.loanfacilityid = a.loanfacilityid

and c.closedate = pkg_eod_util.getlastclosedate()

and c.loandealid = b.loandealid

and d.closedate = pkg_eod_util.getlastclosedate()

and d.pvtrsid = a.ptrsid

and e.closedate(+) = pkg_eod_util.getlastclosedate()

and e.SELLTRADEID(+) = a.swaptradeid

and f.closedate(+) = pkg_eod_util.getlastclosedate()

and f.positionid (+) = e.positionid

and g.LOANTRADEID(+) = a.LOANTRADEID

order by a.tradedate asc, a.tradeside asc, a.lqtticketid asc

, e.positionid asc

Execution Plan for new SQL:

========================================

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| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time |

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| 0 | SELECT STATEMENT | | 26922 | 7230K| | 8872 (1)| 00:01:47 |

| 1 | SORT ORDER BY | | 26922 | 7230K| 7704K| 8872 (1)| 00:01:47 |

|* 2 | HASH JOIN | | 26922 | 7230K| | 7274 (1)| 00:01:28 |

| 3 | TABLE ACCESS BY INDEX ROWID | LOANDEAL_EOD | 2497 | 89892 | | 322 (1)| 00:00:04 |

|* 4 | INDEX RANGE SCAN | SYS_C00435101 | 2497 | | | 9 (0)| 00:00:01 |

|* 5 | HASH JOIN | | 22622 | 5279K| | 6952 (1)| 00:01:24 |

| 6 | TABLE ACCESS BY INDEX ROWID | LOANFACILITY_EOD | 4398 | 193K| | 301 (1)| 00:00:04 |

|* 7 | INDEX RANGE SCAN | SYS_C00435106 | 4398 | | | 15 (0)| 00:00:01 |

|* 8 | HASH JOIN RIGHT OUTER | | 14525 | 2751K| 1368K| 6650 (1)| 00:01:20 |

| 9 | TABLE ACCESS BY INDEX ROWID | PTRSPOSITION_EOD | 25394 | 1066K| | 2276 (1)| 00:00:28 |

|* 10 | INDEX RANGE SCAN | SYS_C00435126 | 25394 | | | 86 (2)| 00:00:02 |

|* 11 | HASH JOIN OUTER | | 12422 | 1831K| | 4210 (1)| 00:00:51 |

|* 12 | HASH JOIN OUTER | | 3897 | 452K| | 697 (1)| 00:00:09 |

| 13 | NESTED LOOPS | | 3897 | 391K| | 558 (1)| 00:00:07 |

| 14 | TABLE ACCESS BY INDEX ROWID| PVTRS_EOD | 1 | 25 | | 2 (0)| 00:00:01 |

|* 15 | INDEX UNIQUE SCAN | SYS_C00435176 | 1 | | | 1 (0)| 00:00:01 |

| 16 | TABLE ACCESS BY INDEX ROWID| SWAPTRADE_EOD | 3897 | 296K| | 556 (1)| 00:00:07 |

|* 17 | INDEX RANGE SCAN | SWAPTRD_EOD_COMP1_IDX | 3897 | | | 15 (0)| 00:00:01 |

| 18 | TABLE ACCESS FULL | TRADEEXTEND | 55289 | 863K| | 138 (2)| 00:00:02 |

| 19 | TABLE ACCESS BY INDEX ROWID | PTRSLIQUIDATION_EOD | 220K| 6877K| | 3509 (1)| 00:00:43 |

|* 20 | INDEX RANGE SCAN | PTRSLIQUIDATION_EOD_CD_IDX | 220K| | | 605 (1)| 00:00:08 |

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