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Update DBEngine.h

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Brandon Jackson 2015-09-24 21:38:07 -05:00
parent 27f63bd452
commit 7166b53797
1 changed files with 1 additions and 0 deletions
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DBEngine.h
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@ -20,6 +20,7 @@ public:
void saveToFile(vector<string> cmds); void saveToFile(vector<string> cmds);
Relation selection(string attName, string s, Relation r); Relation selection(string attName, string s, Relation r);
Relation projection(vector<string> input, Relation r); Relation projection(vector<string> input, Relation r);
Relation product(string s1, Relation r1, Relation r2);
void rename(Relation& r, vector<string> oldnames, vector<string> newnames); void rename(Relation& r, vector<string> oldnames, vector<string> newnames);
Relation setUnion(Relation r1, Relation r2); Relation setUnion(Relation r1, Relation r2);
//void setDiff(); //void setDiff();