2.4 Using SQL with Session

In addition to the simplified X DevAPI syntax of the Session object, the Session object has a sql() function that takes any SQL statement as a string.

The following example uses a Session to call an SQL Stored Procedure on the specific node.

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var mysqlx = require('mysqlx');

// Connect to server using a Session
var mySession = mysqlx.getSession('user:password@localhost');

// Switch to use schema 'test'
mySession.sql("USE test").execute();

// In a Session context the full SQL language can be used
mySession.sql("CREATE PROCEDURE my_add_one_procedure " +
  " (INOUT incr_param INT) " +
  "BEGIN " +
  "  SET incr_param = incr_param + 1;" +
  "END;").execute();
mySession.sql("SET @my_var = ?;").bind(10).execute();
mySession.sql("CALL my_add_one_procedure(@my_var);").execute();
mySession.sql("DROP PROCEDURE my_add_one_procedure;").execute();

// Use an SQL query to get the result
var myResult = mySession.sql("SELECT @my_var").execute();

// Gets the row and prints the first column
var row = myResult.fetchOne();
print(row[0]);

mySession.close();

When using literal/verbatim SQL the common API patterns are mostly the same compared to using DML and CRUD operations on Tables and Collections. Two differences exist: setting the current schema and escaping names.