Separate Code from SQL queries.

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Hi, i have been building my application with SQL queries mixed with the code.
recently i got a challenge. i recieved .sql files(MS SQL Server Query Files) that had queries to CREATE table and INSERT data SQL statements in them. i am meant to write code(for some stand alone app) and use them as they are. i was instructed to also separate my SQL queries and the code.

i dont know where to start since i have been using client/server architecture. with a connection string to the server.
How can i go about this? is there a document/tutorial some where i can read?
Attached herewith is some of the .sql files. take a look, to get a good pictute.

Thanks