identifier can be a reserved word • Delimited identifiers are case-sensitive in all contexts • Trailing spaces in delimited names are removed, as with any string constant • Delimited identifiers are fixed-length character data type. When its data is displayed, trailing spaces are added to the string up to the specified length. Trailing spaces are not stored in the database but are restored to match two trailing bytes store the declared length. There is no default size: the n argument is mandatory. Leading and trailing spaces are stored and they are not trimmed, except for those trailing characters

identifier can be a reserved word • Delimited identifiers are case-sensitive in all contexts • Trailing spaces in delimited names are removed, as with any string constant • Delimited identifiers are default size: the n argument is mandatory. Leading and trailing NUL characters are stored, and they are not trimmed, except for those trailing characters that are past the declared length. VARCHAR(n) no default size: the n argument is mandatory. Leading and trailing spaces are stored, and they are not trimmed, except for those trailing characters that are past the declared length.  Note About

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed 7.2.1. The FROM Clause The FROM Clause derives a table from one or more other tables given in a comma-separated table refer- ence list. FROM table_reference [, table_reference [, ...]] A table reference

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed 7.2.1. The FROM Clause The FROM Clause derives a table from one or more other tables given in a comma-separated table reference list. FROM table_reference [, table_reference [, ...]] A table reference

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed 7.2.1. The FROM Clause The FROM Clause derives a table from one or more other tables given in a comma-separated table refer- ence list. FROM table_reference [, table_reference [, ...]] A table reference

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed 7.2.1. The FROM Clause The FROM Clause derives a table from one or more other tables given in a comma-separated table refer- ence list. FROM table_reference [, table_reference [, ...]] A table reference

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed 7.2.1. The FROM Clause The FROM Clause derives a table from one or more other tables given in a comma-separated table refer- ence list. FROM table_reference [, table_reference [, ...]] A table reference

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed 7.2.1. The FROM Clause The FROM Clause derives a table from one or more other tables given in a comma-separated table refer- ence list. FROM table_reference [, table_reference [, ...]] A table reference

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed SELECT, UPDATE and DELETE — support the ONLY keyword. You can also write the table name with a trailing * to explicitly specify that descendant tables are included: SELECT name, altitude FROM cities*

type names are usually also identifiers, but there are some exceptions. Note that the column list is comma-separated and surrounded by parentheses. Of course, the previous example was heavily contrived. Normally new syntax. It is not attached to a particular column, instead it appears as a separate item in the comma-separated column list. Column definitions and these constraint definitions can be listed in mixed SELECT, UPDATE and DELETE — support the ONLY keyword. You can also write the table name with a trailing * to explicitly specify that descendant tables are included: SELECT name, altitude FROM cities*