SQL Server 2017 adds 68 new Collations, but none end with "_SC". This seems to be due to Supplementary Characters being supported by default (which is great 😺).
Quite often people will use, or will recommend using, a binary Collation (one ending in "_BIN" or "_BIN2") when wanting to do a case-sensitive operation. While in many cases it appears to behave as expected, it is best to not use a binary Collation for this purpose. The problem with using binary Collations to achieve… Continue reading No, Binary Collations are not Case-Sensitive
You may have heard, or read, that you should not mix VARCHAR and NVARCHAR datatypes, especially when one of them is a JOIN or WHERE predicate / condition, as doing so will invalidate indexes. While it is always best to have all datatypes be the same for a particular operation (comparison, concatenation, etc), the actual… Continue reading Impact on Indexes When Mixing VARCHAR and NVARCHAR Types