const regex = /(?:\s+JOIN\s+)(\w+\.\w+)|(?:\s+FROM\s+)(\w+\.\w+)/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(?:\\s+JOIN\\s+)(\\w+\\.\\w+)|(?:\\s+FROM\\s+)(\\w+\\.\\w+)', 'g')
const str = `"let
Source = DB2.Database(""10.231.250.32"", ""bcudb"", [HierarchicalNavigation=true, Implementation=""Microsoft"", Query=""SELECT i.ASSIGNMENT_GROUP, i.BUSINESS_SERVICE, i.CATEGORY, i.CAUSED_BY, i.CLOSE_CODE, i.CLOSED_ON, i.COMPANY, i.CONTACT_TYPE, i.DESCRIPTION, i.NUMBER, i.PARENT_INCIDENT, i.PRIORITY, i.RESOLVED_ON, i.SHORT_DESCRIPTION, i.CREATED_ON, i.CAUSE_CODE, i.CLOSED, i.CREATED, i.RESOLVED, i.RESOLUTION_MET, p.problem_id FROM EDWP_D2PM.SN_INC_RPTG_SCRUBBED i LEFT OUTER JOIN EDWP_D2PM.SN_INCIDENTS_CUST_RPTG p on p.number = i.number WHERE i.PRIORITY INLEFT OUTER JOIN EDWP_D2PM.SN_INCIDENTS_CUST_RPTG ('1 - Critical', '2 - High') AND TO_CHAR(i.created_on,'YYYY-MM') > (select to_char((CURRENT DATE - 12 MONTHS),'YYYY-MM') from SYSIBM.SYSDUMMY1) AND (i.CATEGORY <> 'Alert' OR (i.CATEGORY IS NULL)) AND i.PARENT_INCIDENT IS NULL AND i.EXCLUSIONS <> 'R' AND i.CLOSE_CODE <> 'Duplicate - No Action Taken' with ur""]), RIGHT JOIN EDWP.TEMP blaha blah
#""Changed Type"" = Table.TransformColumnTypes(Source,{{""RESOLVED_ON"", type datetime}})
in
#""Changed Type"""`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions