docs: Update transactions how to example #1775
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The example for transactions is a little confusing for a few reasons:
WithTx
, but then it never actually calls itdb
package - I believedb.Begin(ctx)
should bep.Begin(ctx)
My suggestion here does a few things:
package tutorial
,queries
,schema.sql
,query.sql
,db
, etc).database/sql
andlib/pq
to match the “Getting started with PostgreSQL” tutorial.