@@ -47,7 +47,7 @@ Database context expressions take the current database context as input and alte
48|Database Context Expression |Description |
48|Database Context Expression |Description |
49|------------------------------------------------------|---------------------------------------|
49|------------------------------------------------------|---------------------------------------|
50−|`:importexample date`|Imports a precooked schema from Chris Date's books resulting in relvars `s`, `sp`, and `p`|
50+|`:importexample cjdate`|Imports a precooked schema from Chris Date's books resulting in relvars `s`, `sp`, and `p`|
51|`newrelvar:=relation{tuple{age 3}}`|Assign a new relation variable named `newrelvar`|
51|`newrelvar:=relation{tuple{age 3}}`|Assign a new relation variable named `newrelvar`|
52|`undefine s`|Remove a relation variable|
52|`undefine s`|Remove a relation variable|
53|`insert s relation{tuple{city "Boston",s# "S10",sname "Gonzalez",status 10}}`| Append to an existing relation variable with another relational expression|
53|`insert s relation{tuple{city "Boston",s# "S10",sname "Gonzalez",status 10}}`| Append to an existing relation variable with another relational expression|