SQL Server: Merge Data Rows in single table in output -


i have sql server table following fields , sample data:

id         name   address   age 23052-pf   peter  timbuktu  25 23052-d1   jane   paris     22 23052-d2   david  london    24 23050-pf   sam    beijing   22 23051-pf   nancy  nyc       26 23051-d1   carson cali      22 23056-pf   grace  la        28 23056-d1   smith  boston    23 23056-d2   mark   adelaide  26 23056-d3   hose   mexico    25 23056-d4   mandy  victoria  24

each id -pf unique in table.

each id -dx related same id -pf.

each id -pf may have 0 or more ids -dx.

the maximum number of -dx rows given -pf 9.

i.e. id 11111-pf can have 11111-d1, 11111-d2, 11111-d3 11111-d9.

output expected above sample data:

id        id (without suffix)  pf_name  pf_address  pf_age  d_name   d_address   d_age 23052-pf  23052                peter    timbuktu    25      jane     paris       22 23052-pf  23052                peter    timbuktu    25      david    london      24 23050-pf  23050                sam      beijing     22      null     null        null 23051-pf  23051                nancy    nyc         26      carson   cali        22 23056-pf  23056                grace    la          28      smith    boston      23 23056-pf  23056                grace    la          28      mark     adelaide    26 23056-pf  23056                grace    la          28      hose     mexico      25 23056-pf  23056                grace    la          28      mandy    victoria    24

i need able join -pf , -dx above.

if -pf has 0 dx rows, d_name, d_address , d_age columns in output should return null.

if -pf has 1 or more dx rows, pf_name, pf_address , pf_age should repeat each row in output , d_name, d_address , d_age should contain values each related dx row.

need use mssql.

query should not use views or create additional tables.

thanks help!

select      pf.id,     pf.idnum,     pf.name pf_name,     pf.address pf_address,     pf.age pf_age,     dx.name d_name,     dx.address d_address,     dx.age d_age   ( select     id, left(id, 5) idnum, name, address, age      mytable      right(id, 3) = '-pf' ) pf  left outer join  ( select     id, left(id, 5) idnum, name, address, age      mytable      right(id, 3) != '-pf' ) dx  on pf.idnum = dx.idnum

sqlfiddle demo: http://sqlfiddle.com/#!6/dfdbb/1


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