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8.12. The query Command

Table 8.13. query Common Options

OptionDescription
-conf PATHConfiguration file that contains values for connection properties (url, user and password)
-file PATHFile containing the SQL commands to run. If missing, read SQL commands from STDIN
-passwordPrompt for password
-url JDBCURLJDBC url of the database to connect to
-user USERUser used to connect to the database

The query command line tool can be used to issue SQL statements against a database.

The queries can either be entered via STDIN, or read in from a text file

The following example shows a SELECT statement issued via STDIN

shell> query -url "jdbc:mysql:thin://db2:13306/" -user tungsten -password
Enter password: ********
select * from tungsten_nyc.trep_commit_seqno;

[
	{
		"statement":"select * from tungsten_nyc.trep_commit_seqno;","rc":0,"results":
	[
		[
			{
			 "task_id":0,
			 "seqno":1,
			 "fragno":0,
			 "last_frag":"1",
			 "source_id":"db1",
 			 "epoch_number":1,
			 "eventid":"mysql-bin.000002:0000000000000879;-1",
			 "applied_latency":0,
			 "update_timestamp":"2019-06-28 10:44:20.0",
			 "shard_id":"tungsten_nyc",
			 "extract_timestamp":"2019-06-28 10:44:19.0"
			}
		]
	],
		"error":null
	}
]