Trying to find the SQL statement that will return unique parcel number when given different portions of the property address in a web form - mysql

Question

I have a table 'details' with 70 columns including property address info (column names include parcel_id, loc_strno, loc_strfrac, loc_strdir, loc_strname, loc_strtype, loc_strunit, loc_city, state, zip, country...) Users input address information in web form where form field represents column from dbsomething like INPUT =
loc_strno: 123
loc_strdir: West
loc_strname: Main
loc_strtype: Street
Desired OUTPUT: the parcel_id (Primary key of the table) matching the address 123 West Main Street = 555-45-6789
Not sure how to query the database. I am able to save the input address info but not sure of best way to use/compare it to get the parcel_id (primary key).
Web Form collecting address details
exports.postSearchedProperty = (req, res, next) => {
const loc_strno = req.body.loc_strno;
const loc_strfrac = req.body.loc_strfrac;
const loc_strdir = req.body.loc_strdir;
const loc_strname = req.body.loc_strname;
const loc_strtype = req.body.loc_strtype;
const loc_strunit = req.body.loc_strunit;
const loc_city = req.body.loc_city;
const state = req.body.state;
const zip = req.body.zip;
const country = req.body.country;
const searchedproperty = new SearchedProperty(null, loc_strno, loc_strfrac, loc_strdir, loc_strname, loc_strtype, loc_strunit,
loc_city, state, zip, country);
property
prior questions were helpful but not exact.
Mysql query to find ID where multiple condition meet for one column
SQL: how to select a single id ("row") that meets multiple criteria from a single column

Answer 1

What would be the problem with something like this?
SELECT parcel_id FROM dbsomething
WHERE loc_strno = ?
AND loc_strdir = ?
AND loc_strname = ?
AND loc_strtype = ?
Where, following your example inputs, the parameter values would be
'123'
'West'
'Main'
'Street'
EDIT
You have expressed that req.body has many properties and you don't know which will be defined. The best solution for this is to use JavaScript logic rather than SQL.
var queryList = [];
for (p in req.body) {
/* iterate through all possible attributes */
if (req.body[p] !== null) {
/* include the attribute in the query if it's defined */
queryList.push(p + ' = ?');
}
}
const query = 'SELECT parcel_id FROM dbsomething WHERE ' + queryList.join(' AND ');
You can follow a similar procedure to set the actual parameter values. By doing this, you can filter only by attributes that are defined.