You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 hockey
【Schema】
# Table: Scoring
[
(playerID:TEXT, Examples: [aaltoan01, abbeybr01, abbotge01]),
(year:INTEGER, Examples: [1997, 1998, 1999]),
(stint:INTEGER, Examples: [1, 2, 3]),
(tmID:TEXT, Examples: [ANA, CIN, BOS]),
(lgID:TEXT, Examples: [NHL, WHA, PCHA]),
(pos:TEXT, Examples: [C, D, G]),
(GP:INTEGER, Examples: [3, 73, 63]),
(G:INTEGER, Examples: [0, 3, 7]),
(A:INTEGER, Examples: [0, 5, 11]),
(Pts:INTEGER, Examples: [0, 8, 18]),
(PIM:INTEGER, Examples: [0, 24, 26]),
(+/-:TEXT, Examples: [-1, -12, -13]),
(PPG:TEXT, Examples: [0, 2, 1]),
(PPA:TEXT, Examples: [0, 1, 2]),
(SHG:TEXT, Examples: [0, 2, 1]),
(SHA:TEXT, Examples: [0, 1, 2]),
(GWG:TEXT, Examples: [0, 1, 3]),
(GTG:TEXT, Examples: [0, 1, 3]),
(SOG:TEXT, Examples: [1, 61, 102]),
(PostGP:TEXT, Examples: [4, 10, 11]),
(PostG:TEXT, Examples: [0, 2, 1]),
(PostA:TEXT, Examples: [0, 1, 3]),
(PostPts:TEXT, Examples: [0, 3, 2]),
(PostPIM:TEXT, Examples: [2, 0, 36]),
(Post+/-:TEXT, Examples: [0, 2, 1]),
(PostPPG:TEXT, Examples: [0, 1, 5]),
(PostPPA:TEXT, Examples: [0, 1, 3]),
(PostSHG:TEXT, Examples: [0, 1, 2]),
(PostSHA:TEXT, Examples: [0, 1, 2]),
(PostGWG:TEXT, Examples: [0, 1, 2]),
(PostSOG:TEXT, Examples: [0, 11, 12])
]
# Table: SeriesPost
[
(year:INTEGER, Examples: [1912, 1913, 1914]),
(round:TEXT, Examples: [SCF, F, SF]),
(series:TEXT, Examples: [A, B, C]),
(tmIDWinner:TEXT, Examples: [VA1, TBS, OT1]),
(lgIDWinner:TEXT, Examples: [PCHA, NHA, NHL]),
(tmIDLoser:TEXT, Examples: [QU1, MOC, VA1]),
(lgIDLoser:TEXT, Examples: [NHA, PCHA, NHL]),
(W:INTEGER, Examples: [2, 1, 3]),
(L:INTEGER, Examples: [1, 0, 2]),
(T:INTEGER, Examples: [0, 1, 2]),
(GoalsWinner:INTEGER, Examples: [16, 6, 13]),
(GoalsLoser:INTEGER, Examples: [12, 2, 8]),
(note:TEXT, Examples: [EX, TG, ND])
]
# Table: TeamsPost
[
(year:INTEGER, Primary Key, Examples: [1913, 1914, 1916]),
(lgID:TEXT, Examples: [NHA, NHL, PCHA]),
(tmID:TEXT, Primary Key, Examples: [MOC, TBS, MOW]),
(G:INTEGER, Examples: [2, 5, 6]),
(W:INTEGER, Examples: [1, 0, 4]),
(L:INTEGER, Examples: [1, 0, 4]),
(T:INTEGER, Examples: [0, 1, 2]),
(GF:INTEGER, Examples: [2, 6, 1]),
(GA:INTEGER, Examples: [6, 2, 4]),
(PIM:TEXT, Examples: [59, 68, 87]),
(BenchMinor:TEXT, Examples: [0, 6, 2]),
(PPG:TEXT, Examples: [1, 5, 9]),
(PPC:TEXT, Examples: [39, 27, 25]),
(SHA:TEXT, Examples: [0, 1, 2]),
(PKG:TEXT, Examples: [3, 8, 4]),
(PKC:TEXT, Examples: [55, 45, 20]),
(SHF:TEXT, Examples: [0, 1, 3])
]
# Table: ScoringShootout
[
(playerID:TEXT, Examples: [adamske01, afanadm01, afinoma01]),
(year:INTEGER, Examples: [2006, 2005, 2007]),
(stint:INTEGER, Examples: [1, 2, 3]),
(tmID:TEXT, Examples: [PHO, TBL, BUF]),
(S:INTEGER, Examples: [1, 2, 5]),
(G:INTEGER, Examples: [0, 1, 3]),
(GDG:INTEGER, Examples: [0, 1, 2])
]
# Table: AwardsCoaches
[
(coachID:TEXT, Examples: [patrile01c, irvindi01c, gormato01c]),
(award:TEXT, Examples: [First Team All-Star, Second Team All-Star, Jack Adams]),
(year:INTEGER, Examples: [1930, 1931, 1932]),
(lgID:TEXT, Examples: [NHL, WHA]),
(note:TEXT)
]
# Table: AwardsMisc
[
(name:TEXT, Primary Key, Examples: [1960 U.S. Olympic Hockey Team]),
(ID:TEXT, Examples: [arboual01, delveal01, rossar01]),
(award:TEXT, Examples: [Patrick]),
(year:INTEGER, Examples: [2001, 1998, 1991]),
(lgID:TEXT, Examples: [NHL]),
(note:TEXT, Examples: [posthumous])
]
# Table: Master
[
(playerID:TEXT, Examples: [aaltoan01, abbeybr01, abbotge01]),
(coachID:TEXT, Examples: [abelsi01c, adamsja01c, agnewga01c]),
(hofID:TEXT, Examples: [abelsi01h, adamsch01h, adamsja01h]),
(firstName:TEXT, Examples: [Antti, Bruce, George]),
(lastName:TEXT, Examples: [Aalto, Abbey, Abbott]),
(nameNote:TEXT, Examples: [also known as Bellehumeur]),
(nameGiven:TEXT, Examples: [Antti, Bruce, George Henry]),
(nameNick:TEXT, Examples: [Preacher, Taffy, Boot Nose]),
(height:TEXT, Examples: [73, 67, 71]),
(weight:TEXT, Examples: [210, 185, 153]),
(shootCatch:TEXT, Examples: [L, R, B]),
(legendsID:TEXT, Examples: [14862, 18411, 11801]),
(ihdbID:TEXT, Examples: [5928, 11918, 14591]),
(hrefID:TEXT, Examples: [aaltoan01, abbeybr01, abbotge01]),
(firstNHL:TEXT, Examples: [1997, 1943, 1952]),
(lastNHL:TEXT, Examples: [2000, 1943, 1952]),
(firstWHA:TEXT, Examples: [1975, 1976, 1974]),
(lastWHA:TEXT, Examples: [1975, 1977, 1976]),
(pos:TEXT, Examples: [C, D, G]),
(birthYear:TEXT, Examples: [1975, 1951, 1911]),
(birthMon:TEXT, Examples: [3, 8, 2]),
(birthDay:TEXT, Examples: [4, 18, 3]),
(birthCountry:TEXT, Examples: [Finland, Canada, USA]),
(birthState:TEXT, Examples: [ON, MB, MI]),
(birthCity:TEXT, Examples: [Lappeenranta, Toronto, Synenham]),
(deathYear:TEXT, Examples: [1964, 2000, 2001]),
(deathMon:TEXT, Examples: [8, 2, 12]),
(deathDay:TEXT, Examples: [1, 7, 24]),
(deathCountry:TEXT, Examples: [USA, Canada, France]),
(deathState:TEXT, Examples: [MI, AB, SK]),
(deathCity:TEXT, Examples: [Sault Ste. Marie, Farmington, Calgary])
]
# Table: ScoringSC
[
(playerID:TEXT, Examples: [adamsbi01, adamsja01, anderer02]),
(year:INTEGER, Examples: [1920, 1921, 1923]),
(tmID:TEXT, Examples: [VML, CAT, VIC]),
(lgID:TEXT, Examples: [PCHA, WCHL, NHL]),
(pos:TEXT, Examples: [R, C, L]),
(GP:INTEGER, Examples: [4, 5, 2]),
(G:INTEGER, Examples: [0, 2, 6]),
(A:INTEGER, Examples: [0, 1, 2]),
(Pts:INTEGER, Examples: [0, 3, 7]),
(PIM:INTEGER, Examples: [0, 6, 18])
]
# Table: TeamsSC
[
(year:INTEGER, Primary Key, Examples: [1912, 1913, 1914]),
(lgID:TEXT, Examples: [NHA, PCHA, NHL]),
(tmID:TEXT, Primary Key, Examples: [QU1, VA1, TBS]),
(G:INTEGER, Examples: [3, 5, 4]),
(W:INTEGER, Examples: [1, 2, 3]),
(L:INTEGER, Examples: [2, 1, 0]),
(T:INTEGER, Examples: [0, 1]),
(GF:INTEGER, Examples: [12, 16, 13]),
(GA:INTEGER, Examples: [16, 12, 8]),
(PIM:TEXT, Examples: [24, 20, 75])
]
# Table: TeamSplits
[
(year:INTEGER, Primary Key, Examples: [1909, 1910, 1911]),
(lgID:TEXT, Examples: [NHA, PCHA, NHL]),
(tmID:TEXT, Primary Key, Examples: [COB, HAI, LES]),
(hW:INTEGER, Examples: [2, 3, 6]),
(hL:INTEGER, Examples: [4, 3, 2]),
(hT:INTEGER, Examples: [0, 1, 2]),
(hOTL:TEXT, Examples: [2, 3, 1]),
(rW:INTEGER, Examples: [2, 1, 0]),
(rL:INTEGER, Examples: [4, 5, 6]),
(rT:INTEGER, Examples: [0, 1, 2]),
(rOTL:TEXT, Examples: [1, 5, 3]),
(SepW:TEXT, Examples: [1]),
(SepL:TEXT, Examples: [1]),
(SepT:TEXT),
(SepOL:TEXT, Examples: [0]),
(OctW:TEXT, Examples: [0, 1, 2]),
(OctL:TEXT, Examples: [1, 0, 2]),
(OctT:TEXT, Examples: [0, 1, 4]),
(OctOL:TEXT, Examples: [1, 0, 2]),
(NovW:TEXT, Examples: [5, 1, 2]),
(NovL:TEXT, Examples: [1, 4, 3]),
(NovT:TEXT, Examples: [0, 1, 2]),
(NovOL:TEXT, Examples: [0, 2, 1]),
(DecW:TEXT, Examples: [0, 1, 2]),
(DecL:TEXT, Examples: [1, 0, 2]),
(DecT:TEXT, Examples: [0, 1, 2]),
(DecOL:TEXT, Examples: [0, 2, 1]),
(JanW:INTEGER, Examples: [1, 0, 2]),
(JanL:INTEGER, Examples: [1, 3, 2]),
(JanT:INTEGER, Examples: [0, 1, 3]),
(JanOL:TEXT, Examples: [0, 1, 2]),
(FebW:INTEGER, Examples: [2, 1, 6]),
(FebL:INTEGER, Examples: [3, 5, 0]),
(FebT:INTEGER, Examples: [0, 1, 2]),
(FebOL:TEXT, Examples: [0, 1, 4]),
(MarW:TEXT, Examples: [1, 3, 0]),
(MarL:TEXT, Examples: [4, 0, 2]),
(MarT:TEXT, Examples: [0, 1, 2]),
(MarOL:TEXT, Examples: [1, 0, 2]),
(AprW:TEXT, Examples: [1, 0, 2]),
(AprL:TEXT, Examples: [0, 2, 1]),
(AprT:TEXT, Examples: [0, 1, 2]),
(AprOL:TEXT, Examples: [1, 0, 2])
]
# Table: GoaliesSC
[
(playerID:TEXT, Primary Key, Examples: [benedcl01, clancki01, holmeha01]),
(year:INTEGER, Primary Key, Examples: [1914, 1919, 1920]),
(tmID:TEXT, Examples: [OT1, OTS, MTM]),
(lgID:TEXT, Examples: [NHA, NHL, PCHA]),
(GP:INTEGER, Examples: [3, 5, 6]),
(Min:INTEGER, Examples: [180, 300, 361]),
(W:INTEGER, Examples: [0, 3, 5]),
(L:INTEGER, Examples: [3, 2, 1]),
(T:INTEGER, Examples: [0, 1]),
(SHO:INTEGER, Examples: [0, 1, 3]),
(GA:INTEGER, Examples: [26, 11, 12])
]
# Table: CombinedShutouts
[
(year:INTEGER, Examples: [1929, 1941, 1955]),
(month:INTEGER, Examples: [3, 2, 11]),
(date:INTEGER, Examples: [14, 15, 22]),
(tmID:TEXT, Examples: [TOR, MTL, OAK]),
(oppID:TEXT, Examples: [NYA, BOS, PHI]),
(R/P:TEXT, Examples: [R, P]),
(IDgoalie1:TEXT, Examples: [chabolo01, bibeapa01, plantja01]),
(IDgoalie2:TEXT, Examples: [grantbe01, gardibe01, hodgech01])
]
# Table: GoaliesShootout
[
(playerID:TEXT, Examples: [aebisda01, andercr01, aubinje01]),
(year:INTEGER, Examples: [2005, 2006, 2008]),
(stint:INTEGER, Examples: [1, 2]),
(tmID:TEXT, Examples: [COL, MTL, CHI]),
(W:INTEGER, Examples: [2, 0, 1]),
(L:INTEGER, Examples: [1, 2, 3]),
(SA:INTEGER, Examples: [10, 18, 7]),
(GA:INTEGER, Examples: [2, 6, 5])
]
# Table: Teams
[
(year:INTEGER, Primary Key, Examples: [1909, 1910, 1911]),
(lgID:TEXT, Examples: [NHA, PCHA, NHL]),
(tmID:TEXT, Primary Key, Examples: [COB, HAI, LES]),
(franchID:TEXT, Examples: [BKN, MTL, TBS]),
(confID:TEXT, Examples: [CC, WA, WC]),
(divID:TEXT, Examples: [AM, CA, ED]),
(rank:INTEGER, Examples: [4, 5, 7]),
(playoff:TEXT, Examples: [LCS, WCS, NHAF]),
(G:INTEGER, Examples: [12, 16, 18]),
(W:INTEGER, Examples: [4, 2, 3]),
(L:INTEGER, Examples: [8, 10, 1]),
(T:INTEGER, Examples: [0, 1, 2]),
(OTL:TEXT, Examples: [3, 4, 6]),
(Pts:INTEGER, Examples: [8, 4, 7]),
(SoW:TEXT, Examples: [3, 5, 2]),
(SoL:TEXT, Examples: [7, 5, 8]),
(GF:INTEGER, Examples: [79, 77, 59]),
(GA:INTEGER, Examples: [104, 83, 100]),
(name:TEXT, Examples: [Cobalt Silver Kings]),
(PIM:TEXT, Examples: [336, 27, 333]),
(BenchMinor:TEXT, Examples: [12, 14, 8]),
(PPG:TEXT, Examples: [28, 51, 42]),
(PPC:TEXT, Examples: [220, 279, 240]),
(SHA:TEXT, Examples: [4, 2, 5]),
(PKG:TEXT, Examples: [45, 43, 36]),
(PKC:TEXT, Examples: [242, 301, 267]),
(SHF:TEXT, Examples: [3, 8, 2])
]
# Table: TeamsHalf
[
(year:INTEGER, Primary Key, Examples: [1916, 1917, 1918]),
(lgID:TEXT, Examples: [NHA, NHL]),
(tmID:TEXT, Primary Key, Examples: [MOC, MOW, OT1]),
(half:INTEGER, Primary Key, Examples: [1, 2]),
(rank:INTEGER, Examples: [1, 3, 5]),
(G:INTEGER, Examples: [10, 4, 14]),
(W:INTEGER, Examples: [7, 3, 2]),
(L:INTEGER, Examples: [3, 7, 8]),
(T:INTEGER, Examples: [0]),
(GF:INTEGER, Examples: [58, 31, 56]),
(GA:INTEGER, Examples: [38, 42, 72])
]
# Table: Goalies
[
(playerID:TEXT, Primary Key, Examples: [abbotge01, abrahch01, adamsjo02]),
(year:INTEGER, Primary Key, Examples: [1943, 1974, 1975]),
(stint:INTEGER, Primary Key, Examples: [1, 2, 3]),
(tmID:TEXT, Examples: [BOS, NEW, WAS]),
(lgID:TEXT, Examples: [NHL, WHA, NHA]),
(GP:TEXT, Examples: [1, 16, 41]),
(Min:TEXT, Examples: [60, 870, 2385]),
(W:TEXT, Examples: [0, 8, 18]),
(L:TEXT, Examples: [1, 6, 18]),
(T/OL:TEXT, Examples: [0, 1, 2]),
(ENG:TEXT, Examples: [0, 1, 3]),
(SHO:TEXT, Examples: [0, 1, 2]),
(GA:TEXT, Examples: [7, 47, 136]),
(SA:TEXT, Examples: [504, 1221, 1438]),
(PostGP:TEXT, Examples: [1, 2, 11]),
(PostMin:TEXT, Examples: [1, 90, 34]),
(PostW:TEXT, Examples: [0, 6, 1]),
(PostL:TEXT, Examples: [0, 1, 5]),
(PostT:TEXT, Examples: [1, 0, 2]),
(PostENG:TEXT, Examples: [0, 1, 2]),
(PostSHO:TEXT, Examples: [0, 1, 2]),
(PostGA:TEXT, Examples: [0, 5, 1]),
(PostSA:TEXT, Examples: [51, 0, 14])
]
# Table: abbrev
[
(Type:TEXT, Primary Key, Examples: [Conference, Division, Playoffs]),
(Code:TEXT, Primary Key, Examples: [CC, EC, WA]),
(Fullname:TEXT, Examples: [Campbell Conference, Eastern Conference, Wales Conference])
]
# Table: Coaches
[
(coachID:TEXT, Primary Key, Examples: [abelsi01c, adamsja01c, agnewga01c]),
(year:INTEGER, Primary Key, Examples: [1952, 1953, 1957]),
(tmID:TEXT, Primary Key, Examples: [CHI, DET, STL]),
(lgID:TEXT, Examples: [NHL, WHA, NHA]),
(stint:INTEGER, Primary Key, Examples: [1, 2, 3]),
(notes:TEXT, Examples: [interim]),
(g:INTEGER, Examples: [70, 33, 74]),
(w:INTEGER, Examples: [27, 12, 16]),
(l:INTEGER, Examples: [28, 51, 12]),
(t:INTEGER, Examples: [15, 7, 5]),
(postg:TEXT, Examples: [7, 4, 6]),
(postw:TEXT, Examples: [3, 0, 2]),
(postl:TEXT, Examples: [4, 5, 6]),
(postt:TEXT, Examples: [0, 1, 2])
]
# Table: TeamVsTeam
[
(year:INTEGER, Primary Key, Examples: [1909, 1910, 1911]),
(lgID:TEXT, Examples: [NHA, PCHA, NHL]),
(tmID:TEXT, Primary Key, Examples: [COB, HAI, LES]),
(oppID:TEXT, Primary Key, Examples: [HAI, LES, MOS]),
(W:INTEGER, Examples: [1, 2, 0]),
(L:INTEGER, Examples: [1, 0, 2]),
(T:INTEGER, Examples: [0, 1, 2]),
(OTL:TEXT, Examples: [0, 1, 3])
]
# Table: ScoringSup
[
(playerID:TEXT, Examples: [actonke01, adamsgr01, allismi01]),
(year:INTEGER, Examples: [1988, 1989, 1987]),
(PPA:TEXT, Examples: [1, 5, 4]),
(SHA:TEXT, Examples: [1, 2, 4])
]
# Table: HOF
[
(year:INTEGER, Examples: [1969, 1960, 1959]),
(hofID:TEXT, Primary Key, Examples: [abelsi01h, adamsch01h, adamsja01h]),
(name:TEXT, Examples: [Sid Abel, Charles Adams, Jack Adams]),
(category:TEXT, Examples: [Player, Builder, Referee/Linesman])
]
# Table: AwardsPlayers
[
(playerID:TEXT, Primary Key, Examples: [abelsi01, alfreda01, amontto01]),
(award:TEXT, Primary Key, Examples: [First Team All-Star, Hart, Second Team All-Star]),
(year:INTEGER, Primary Key, Examples: [1948, 1949, 1941]),
(lgID:TEXT, Examples: [NHL, WHA]),
(note:TEXT, Examples: [tie, shared, Most Gentlemanly]),
(pos:TEXT, Examples: [C, LW, F])
]
【Foreign keys】
Scoring.year=Teams.year
Scoring.tmID=Teams.tmID
Scoring.playerID=Master.playerID
SeriesPost.year=Teams.year
SeriesPost.tmIDWinner=Teams.tmID
SeriesPost.year=Teams.year
SeriesPost.tmIDLoser=Teams.tmID
TeamsPost.year=Teams.year
TeamsPost.tmID=Teams.tmID
ScoringShootout.year=Teams.year
ScoringShootout.tmID=Teams.tmID
ScoringShootout.playerID=Master.playerID
AwardsCoaches.coachID=Coaches.coachID
Master.coachID=Coaches.coachID
ScoringSC.year=Teams.year
ScoringSC.tmID=Teams.tmID
ScoringSC.playerID=Master.playerID
TeamsSC.year=Teams.year
TeamsSC.tmID=Teams.tmID
TeamSplits.year=Teams.year
TeamSplits.tmID=Teams.tmID
GoaliesSC.year=Teams.year
GoaliesSC.tmID=Teams.tmID
GoaliesSC.playerID=Master.playerID
CombinedShutouts.IDgoalie1=Master.playerID
CombinedShutouts.IDgoalie2=Master.playerID
GoaliesShootout.year=Teams.year
GoaliesShootout.tmID=Teams.tmID
GoaliesShootout.playerID=Master.playerID
TeamsHalf.tmID=Teams.tmID
TeamsHalf.year=Teams.year
Goalies.year=Teams.year
Goalies.tmID=Teams.tmID
Goalies.playerID=Master.playerID
Coaches.year=Teams.year
Coaches.tmID=Teams.tmID
TeamVsTeam.year=Teams.year
TeamVsTeam.tmID=Teams.tmID
TeamVsTeam.oppID=Teams.tmID
TeamVsTeam.year=Teams.year
ScoringSup.playerID=Master.playerID
AwardsPlayers.playerID=Master.playerID

    【Question】
    What is the percentage of winning rate of improvement since Alain Vigneault became the coach of Vancouver Canucks in 2006 season? winning rate refers to DIVIDE (w, SUM(w, l)); Vancouver Canucks is name of team where tmID = 'VAN'
Winning rate refers to DIVIDE(wins in year = '2005/2006'(ADD(wins+loses); improvement refers to SUBTRACT(DIVIDE(wins in year = '2005'(ADD(wins+loses), DIVIDE(wins in year = '2006'(ADD(wins+loses))

    【Evidence】
    winning rate refers to DIVIDE (w, SUM(w, l)); Vancouver Canucks is name of team where tmID = 'VAN'
Winning rate refers to DIVIDE(wins in year = '2005/2006'(ADD(wins+loses); improvement refers to SUBTRACT(DIVIDE(wins in year = '2005'(ADD(wins+loses), DIVIDE(wins in year = '2006'(ADD(wins+loses))


    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT SUM(CASE WHEN T1.year = 2006 THEN CAST(T1.W AS REAL) * 100 / (T1.W + T1.L) ELSE 0 END) - ( SELECT CAST(W AS REAL) * 100 / (W + L) FROM Teams WHERE year = '2005' AND name = 'Vancouver Canucks' ) FROM Teams AS T1 INNER JOIN Coaches AS T2 ON T1.tmID = T2.tmID AND T1.year = T2.year INNER JOIN Master AS T3 ON T2.coachID = T3.coachID WHERE T1.name = 'Vancouver Canucks' AND T3.firstName = 'Alain' AND T3.lastName = 'Vigneault'