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Availability

This routine is available starting with SIL Engine™ 1.0, changed in 2.5.8.

Syntax

sql(datasourceName, sqlstring, [...])

Description

Executes the SQL phrase over the defined datasource.

For selects returning multiple rows, it concatenates the values (for instance you select 2 values and the select returns 4 rows, you will have 2*4 = 8 values). For updates, it returns the update count.

Parameters

Parameter name

Type

Required

Description

datasourceName

string

yes

Datasource name or JNDI name. For Jira database, this is set to "jdbc/JiraDS" by default.

sqlstring

string

yes

SQL string.

Starting with SIL Engine™ 2.5.8, the routine accepts multiple parameters, in this case the sql statement being pushed as prepared into the database (check the second example below for right syntax). The old syntax is still functional too.

Returns

string []

Example

Example 1

string [] results = sql("datasourceName", "select project_id from project_lookaside where project_code='" + project + "'");
//Note: this example is open to SQL injection if 'project' is not the standard issue project (derived) but a variable supplied by user. Take care.

Example 2

string [] results = sql("datasourceName", "select project_id from project_lookaside where project_code=?", project);

//this is better. No sql injection possible.

Example 3

It is tedious to iterate over a result in its flat form. The better way is to do it like this:

struct Person {
  string fName;
  string lName;
  number age;
}

Person [] results = sql("datasourceName", "SELECT fName, lName, age FROM person WHERE group_member = 'Y'");

//checks to see if there are results there are skipped for brevity, but
//now you can iterate over and use the dot notation, and 'age' is really a number.
string firstResult = results[0].fName + " " + results[0].lName + " " + results[0].age;


Notes

To configure the data source, check the SQL data sources configuration chapter.

See also