Identifier requirements
Start with a letter (A - Z, a - z) or an underscore (“_”). Contain only letters, underscores, decimal digits (0 - 9), and dollar signs (“$”). Are stored and resolved as uppercase characters (e.g. id is stored and resolved as ID).
LOWER
Returns the input string with all characters converted to lowercase.
SQL format models
In Snowflake, SQL format models (i.e. literals containing format strings) are used to specify how numeric values are converted to text strings and vice versa. As such, they can be specified as arguments in the TO_CHAR , TO_VARCHAR and…
Collation support
You might want the strings to be ordered by other rules, such as ignoring whether the characters are uppercase or lowercase. Collation allows you to explicitly specify the rules to use for comparing strings, based on: Different locales…
SnowConvert: Transact Built-in functions
SnowConvert: Transact Built-in functions Applies to [x] SQL Server [x] Azure Synapse Analytics Aggregate TransactSQLSnowflakeNotesTransactSQLSnowflakeNotesAPPROX_COUNT_DISTINCTAPPROX_COUNT_DISTINCTAVGAVGCHECKSUM_AGG*to be definedCOUNTC…
SnowConvert AI - Redshift - Basic elements
Identifiers must consist of only UTF - 8 printable characters. ASCII letters in standard and delimited identifiers are case - insensitive and are folded to lowercase in the database.
SQL functions: Passing in columns that have the upper, lower, or trim collation specifier
The upper and lower collation specifiers convert strings to upper or lower case (respectively) before strings are compared. The trim collation specifier removes leading and trailing spaces before strings are compared.
SnowConvert AI - Redshift - Conditions
A BETWEEN condition tests expressions for inclusion in a range of values, using the keywords BETWEEN and AND.
Behaviour of lowercase alias set outside of the subquery
CAUSE: The quotes around the column alias ("c1") are assumed to be a part of the identifier rather than a way to intact case sensitivity. If we are referencing a column alias that has double quotes in its name then, those double quotes…
SnowConvert AI - Redshift - Built-in functions
(Redshift SQL Language Reference Aggregate Functions).
Source