List of Key = Value Pairs to SQL Expressions

Source: R/sql.R

List of Key = Value Pairs to SQL Expressions

keyValuesToSql(keyValues, filter, like = filter)

Arguments

keyValues

list of key = value pairs
filter

logical. If TRUE the target is an SQL filter expression, otherwise an SQL SET expression.
like

passed to keyValueToSql

Examples

keyValues <- list(name = "Peter", birth = as.POSIXct("1999-09-09"))

setCurrentSqlDialect("msaccess")
cat(keyValuesToSql(keyValues, filter = TRUE))
#> name  LIKE  'Peter' AND birth  LIKE  #1999-09-09#
cat(keyValuesToSql(keyValues, filter = TRUE, like = FALSE))
#> name = 'Peter' AND birth = #1999-09-09#
cat(keyValuesToSql(keyValues, filter = FALSE))
#> name = 'Peter',birth = #1999-09-09#

setCurrentSqlDialect("mysql")
cat(keyValuesToSql(keyValues, filter = TRUE))
#> name  LIKE  "Peter" AND birth  LIKE  '1999-09-09'
cat(keyValuesToSql(keyValues, filter = TRUE, like = FALSE))
#> name = "Peter" AND birth = '1999-09-09'
cat(keyValuesToSql(keyValues, filter = FALSE))
#> name = "Peter",birth = '1999-09-09'