Hi könnte mir bitte jemand die bedeutng von folgendem sagen? (bin noch recht neu)
is ::= INSERT INTO name [ “(” name-liste “)” ] “ta”.
name-liste ::= name { “,” name }* .
name ::= letter { letter | “1” | “2” | “3” | “4” | “5” | “6” | “7” | “8” | “9” | “_” }*.
jex ::=
name CROSS JOIN name
| name ( NATURAL | UNION ) JOIN name
| name [ INNER | LEFT [OUTER] | RIGHT [OUTER] | FULL [OUTER]] JOIN
name ( ON “x < y” | USING “(” name-liste “)” ) .
ok
ich meine allerdings die bedeutung bzw. was da gemacht wird
is ::= INSERT INTO name [ “(” name-liste ̶) ” ] “ta”.
name-liste ::= name { “,” name }* .
name ::= letter { letter | “1” | “2” | “3” | “4” | “5” | “6” | “7” | “8” | “9” | “_” }*.
hier wird doch “ta” in die liste name eingetragen
und hier
jex ::=
name CROSS JOIN name
| name ( NATURAL | UNION ) JOIN name
| name [ INNER | LEFT [OUTER] | RIGHT [OUTER] | FULL [OUTER]] JOIN
name ( ON “x < y” | USING “(” name-liste ̶) ” ) .