Generate SQL snippets comparing variables and values. sqrrl provides two
types of each function. Functions without an underscore, like eq, take an
unlimited number of arguments and value pairs, where each argument is assumed
to be single valued and the argument name is used as the column name.
Functions with an underscore, like eq_, take a vector of columns and a
vector of values that are zipped together. Infix operators are also provided
for LIKE and IN.
eq(...) eq_(var, val) neq(...) neq_(var, val) lt(...) lt_(var, val) leq(...) leq_(var, val) gt(...) gt_(var, val) geq(...) geq_(var, val) in_(var, vals) var %IN% vals like_(var, val) var %LIKE% val like(var, ...) BETWEEN(var, val1, val2)
eq(a = 1, b = 'value') # "a=1" "b=\"value\""#> [1] "a=1" "b=\"value\""eq_(letters[1:3], 1:3) # "a=1" "b=2" "c=3"#> [1] "a=1" "b=2" "c=3"neq(a = 1, b = 'value') # "a!=1" "b!=\"value\""#> [1] "a!=1" "b!=\"value\""neq_(letters[1:3], 1:3) # "a!=1" "b!=2" "c!=3"#> [1] "a!=1" "b!=2" "c!=3"lt(a = 1, b = '2017-01-01') # "a<1" "b<\"2017-01-01\""#> [1] "a<1" "b<\"2017-01-01\""lt_(letters[1:3], 10:12) # "a<10" "b<11" "c<12"#> [1] "a<10" "b<11" "c<12"leq(a = 1, b = '2017-01-01')# "a<=1" "b<=\"2017-01-01\""#> [1] "a<=1" "b<=\"2017-01-01\""leq_(letters[1:3], 10:12) # "a<=10" "b<=11" "c<=12"#> [1] "a<=10" "b<=11" "c<=12"gt(a = 1, b = '2017-01-01') # "a>1" "b>\"2017-01-01\""#> [1] "a>1" "b>\"2017-01-01\""gt_(letters[1:3], 10:12) # "a>10" "b>11" "c>12"#> [1] "a>10" "b>11" "c>12"geq(a = 1, b = '2017-01-01')# "a>=1" "b>=\"2017-01-01\""#> [1] "a>=1" "b>=\"2017-01-01\""geq_(letters[1:3], 10:12) # "a>=10" "b>=11" "c>=12"#> [1] "a>=10" "b>=11" "c>=12"in_('a', c(5, 7, 8)) # "a IN (5, 7, 8)"#> [1] "a IN (5, 7, 8)"'a' %IN% c(5, 7, 8) # "a IN (5, 7, 8)"#> [1] "a IN (5, 7, 8)"like_('a', 'Prefix%') # "a LIKE(\"Prefix%\")"#> [1] "a LIKE(\"Prefix%\")"'a' %LIKE% 'Prefix%' # "a LIKE(\"Prefix%\")"#> [1] "a LIKE(\"Prefix%\")"like('a', 'Prefix%', '%Suffix')#> [1] "(a LIKE(\"Prefix%\") OR a LIKE(\"%Suffix\"))"# "(a LIKE(\"Prefix%\") OR a LIKE(\"%Suffix\"))" BETWEEN('a', 0, 10) # "a BETWEEN 0 AND 10"#> [1] "a BETWEEN 0 AND 10"BETWEEN('timestamp', '2016-01-01', '2017-01-01')#> [1] "`timestamp` BETWEEN \"2016-01-01\" AND \"2017-01-01\""# "`timestamp` BETWEEN \"2016-01-01\" AND \"2017-01-01\""