What SQL is
SQL here means the statements that move a table into a database: INSERT INTO with a VALUES list, and optionally the CREATE TABLE that defines the columns.
Anyone seeding a database, moving a spreadsheet into an application, or writing a migration.
What BBCode is
BBCode uses square-bracket tags. Table support is not universal, but table, tr, th and td are widely implemented.
phpBB, vBulletin and forum software descended from them.
What changes when you convert SQL to BBCode
Column names come from the INSERT column list, or from a CREATE TABLE if one is present. Quoted strings are unquoted, doubled quotes are collapsed, and NULL becomes an empty cell.
Check that your forum has table tags enabled. Many boards ship with them switched off.
What carries over from SQL to BBCode
SQL records 6 things about a table that BBCode has no way to hold.
SQL distinguishes a number from the text of a number; BBCode does not, so every value arrives as text and has to be re-parsed by whatever reads it next.
An empty cell and a missing one are the same thing in BBCode, so a null and an empty string in the SQL both come out blank and can no longer be told apart.
A line break inside a cell ends the row in BBCode, so line breaks are replaced rather than carried through.
BBCode has no separate idea of a header, so the column names become an ordinary first row and nothing in the file marks them as different from the data.
SQL can be read one record at a time. BBCode has to be complete before it means anything, so the whole table is held in memory while it is written and a file that gets cut off part way through is not partly usable - it is unusable.
BBCode is the end of the line for this data. Reading the table back out of it is a separate and much harder problem than writing it, so keep the SQL if you will need the values again.
The identifier 007 comes out of the BBCode as 007. Reading it as a number would have made it 7, and an id that changes value is worse than one that stays text.
The role "Analyst, data" survives with its comma, in one cell rather than split across two. That is the first thing to check in any converted table, and the usual place a BBCode file goes wrong.
The quotes around Jonah "Jo" Pryce are left as a plain quote character in the BBCode.