Show history of queries loaded into a database collection

Usage

dbQueryHistory(con, verbose = FALSE)

Arguments

con: A database connection object, created with nodbi. See section `1 - Database connection` in ctrdata.
verbose: If TRUE, prints additional information (default FALSE).

Value

A data frame (or tibble, if tibble is loaded) with columns: `query-timestamp`, `query-register`, `query-records` (note: this is the number of records loaded when last executing ctrLoadQueryIntoDb, not the total record number) and `query-term`, with one row for each time that ctrLoadQueryIntoDb loaded trial records into this collection.

Examples


dbc <- nodbi::src_sqlite(
  dbname = system.file("extdata", "demo.sqlite", package = "ctrdata"),
  collection = "my_trials",
  flags = RSQLite::SQLITE_RO)

dbQueryHistory(con = dbc)
#> # A tibble: 5 × 4
#>   `query-timestamp`   `query-register` `query-records` `query-term`             
#>   <chr>               <chr>                      <int> <chr>                    
#> 1 2024-05-16 14:05:23 EUCTR                          5 "query=&age=newborn&phas…
#> 2 2024-05-16 14:06:43 CTGOV                          8 "term=AREA[MaximumAge]+R…
#> 3 2024-05-16 14:07:32 ISRCTN                         8 "q=&filters=ageRange:Neo…
#> 4 2024-05-16 14:07:57 CTGOV2                         5 "distance=50&cond=neurob…
#> 5 2024-06-23 16:14:56 CTIS                           3 "searchCriteria={\"conta…