SqlExp
Examples of SqlExp expressions
SqlExp.cpp
#include <RichEdit/RichEdit.h>
#include <Sql/Sql.h>
using namespace Upp;
#ifdef flagQTF
#define GENERATE_QTF
#endif
#define MODEL <SqlExp/SqlExp.sch>
#define SCHEMADIALECT <plugin/sqlite3/Sqlite3Schema.h>
#include <Sql/sch_header.h>
#include <Sql/sch_schema.h>
#include <Sql/sch_source.h>
#define EXP(s) Exp(#s, s)
#ifdef GENERATE_QTF
String qtf;
void Put(String s, const char *splits)
{
Vector<String> split = Split(splits, ';');
bool was = false;
for(int i = 0; i < split.GetCount(); i++) {
int q = s.Find(split[i]);
if(q >= 0) {
if(was)
qtf << "&\n";
qtf << DeQtf(s.Mid(0, q));
s = s.Mid(q);
was = true;
}
}
if(was)
qtf << "&\n";
qtf << DeQtf(s);
}
void Exp(const char *s, SqlStatement sql)
{
qtf << "\n:: ";
Put(s, ".From;.Where;.OrderBy");
qtf << "\n:: ";
Put(sql.Get(PGSQL), " from; where; order by");
}
#else
void Exp(const char *s, SqlStatement sql)
{
LOG(s);
LOG('\t' << sql.Get(PGSQL));
}
#endif
GUI_APP_MAIN
{
#ifdef GENERATE_QTF
qtf << "[C1 {{1:1 SqlExp C`+`+:: PostgreSQL";
#else
StdLogSetup(LOG_FILE|LOG_COUT);
#endif
EXP(Select(COL).From(TABLE1));
EXP(Select(COL.Of(TABLE1)).From(TABLE1));
EXP(Select(COL.As(A)).From(TABLE1));
EXP(Select(TABLE1(COL, A.As("T_A"), SEQ)).From(TABLE1));
EXP(Select(COL&A).From(TABLE1));
EXP(Select(COL[3]).From(TABLE1));
EXP(Select(COLUMN1 % COLUMN2).From(TABLE1));
EXP(Select(COLUMN1 | COLUMN2).From(TABLE1));
EXP(Select(SqlFunc("any_fn", COL, 2)).From(TABLE1));
EXP(Select(SqlTxt("current_time")).From(TABLE1));
EXP(Select(Distinct(COL)).From(TABLE1));
EXP(Select(Distinct(SqlSet(COLUMN1, COLUMN2))).From(TABLE1));
EXP(Select(All(COL)).From(TABLE1));
EXP(Select(Count(COL)).From(TABLE1));
EXP(Select(SqlAll()).From(TABLE1));
EXP(SelectAll().From(TABLE1));
EXP(Select(SqlCountRows()).From(TABLE1));
EXP(Select(COL).From(TABLE1).OrderBy(Descending(COL)));
EXP(Select(SqlMax(COL)).From(TABLE1));
EXP(Select(SqlMin(COL)).From(TABLE1));
EXP(Select(SqlSum(COL)).From(TABLE1));
EXP(Select(Avg(COL)).From(TABLE1));
EXP(Select(Abs(COL)).From(TABLE1));
EXP(Select(Stddev(COL)).From(TABLE1));
EXP(Select(Variance(COL)).From(TABLE1));
EXP(Select(Greatest(COLUMN1, COLUMN2)).From(TABLE1));
EXP(Select(Least(COLUMN1, COLUMN2)).From(TABLE1));
EXP(Select(Upper(COL)).From(TABLE1));
EXP(Select(Lower(COL)).From(TABLE1));
EXP(Select(Length(COL)).From(TABLE1));
EXP(Select(Substr(COL, 2, 1)).From(TABLE1));
EXP(Select(Instr(COL, "hello")).From(TABLE1));
EXP(Select(SqlNvl(COLUMN1, COLUMN2)).From(TABLE1));
EXP(Select(NextVal(SEQ)).Get());
EXP(Select(CurrVal(SEQ)).Get());
EXP(Select(SqlArg()).From(TABLE1));
EXP(Select(Case(COL == 1, "one")(COL == 2, "two")("?")).From(TABLE1));
EXP(Select((COL > 10).AsValue()).From(TABLE2));
EXP(Select((COL > 10).As("GT10")).From(TABLE2));
EXP(Select(COL).From(TABLE1).Where(COL / 2 > 1 && COLUMN1 == "A" || COLUMN2 == Date(2006, 1, 1)));
EXP(Select(COL).From(TABLE1).Where(!(COL == 1)));
EXP(Select(COL).From(TABLE1).Where((COLUMN1 == 1) - (COLUMN2 == 1)));
EXP(Select(COL).From(TABLE1).Where(IsNull(COLUMN1)));
EXP(Select(COL).From(TABLE1).Where(NotNull(COLUMN1)));
EXP(Select(COL).From(TABLE1).Where(Like(COLUMN1, Wild("A*"))));
EXP(Select(COL).From(TABLE1).Where(NotLike(COLUMN1, Wild("A*"))));
EXP(Select(COL).From(TABLE1).Where(In(COL, Select(COL).From(TABLE1))));
EXP(Select(COL).From(TABLE1).Where(COL == Select(COL).From(TABLE1)));
EXP(Select(COL).From(TABLE1).Where(COL == Select(COL).From(TABLE1).AsValue()));
EXP(Select(COL).From(TABLE1).Where(NotIn(COL, Select(COL).From(TABLE1))));
EXP(Select(COL).From(TABLE1).Where(COL != Select(COL).From(TABLE1)));
EXP(Select(COL).From(TABLE1).Where(Exists(Select(COL).From(TABLE1))));
EXP(Select(COL).From(TABLE1).Where(NotExists(Select(COL).From(TABLE1))));
EXP(Select(COLUMN1).From(TABLE1) | Select(COLUMN2).From(TABLE2));
EXP(Select(COLUMN1).From(TABLE1) + Select(COLUMN2).From(TABLE2));
EXP(Select(COLUMN1).From(TABLE1) & Select(COLUMN2).From(TABLE2));
EXP(Select(COLUMN1).From(TABLE1) - Select(COLUMN2).From(TABLE2));
EXP(Select(COL).From(TABLE1).Where(COL == 0).GroupBy(COL).Having(COL == 0).OrderBy(Descending(COL)));
EXP(Select(COL, Count(Select(SqlAll()).From(TABLE1))).From(TABLE1).Where(COL == 0).GroupBy(COL)
.Having(COL == 0).OrderBy(Descending(COL)));
EXP(Select(ID, Avg(COL)).From(TABLE1).GroupBy(ID).Having(SqlBoolFunc("bool_and", COLUMN1 > 0)));
EXP(Select(COL).From(TABLE1).Limit(100));
EXP(Select(COL).From(TABLE1).Limit(100, 10));
EXP(Select(COL).From(TABLE1).Offset(20));
EXP(Select(25 * 34).Get());
EXP(Select(COL).From(TABLE1).Hint("hint"));
EXP(Select(COL).From(TABLE1).InnerJoin(TABLE1).On(COL.Of(TABLE1) == COLUMN1.Of(TABLE1)));
EXP(Select(COL).From(TABLE1).LeftJoin(TABLE1).On(COL.Of(TABLE1) == COLUMN1.Of(TABLE1)));
EXP(Select(COL).From(TABLE1).RightJoin(TABLE1).On(COL.Of(TABLE1) == COLUMN1.Of(TABLE1)));
EXP(Select(COL).From(TABLE1).FullJoin(TABLE1).On(COL.Of(TABLE1) == COLUMN1.Of(TABLE1)));
EXP(Insert(TABLE1)(COLUMN1, 12)(COLUMN2, "hello")(COL, Date(2007, 1, 1)));
EXP(Insert(TABLE1)(COLUMN1, 12)(COLUMN2)(COL).From(TABLE1).Where(COL >= 0));
EXP(Insert(TABLE1)(COL, Select(COLUMN1).From(TABLE1).Where(COLUMN2 == 21).AsValue()));
EXP(Insert(TABLE1)(COLUMN1, "unique_value").Where(NotExists(Select(ID).From(TABLE1).Where(COLUMN1 == "unique_value"))));
EXP(Insert(TABLE1)(COLUMN1)(COL, SqlSum(COLUMN2)).From(TABLE1).Where(COL >= 0).GroupBy(COLUMN1).Having(COLUMN2 > 10));
EXP(Insert(TABLE1)(COLUMN1, 12)(COLUMN2, "hello")(COL, Date(2007, 1, 1)).Returning(ID));
EXP(Update(TABLE1)(COLUMN1, 13)(COLUMN2, "world").Where(COL > Date(2007, 1, 1)));
{
ValueMap m;
m(COLUMN1, 1)(COLUMN2, "hello");
EXP(Insert(TABLE1)(m));
EXP(Update(TABLE2)(m).Where(ID == 123));
}
EXP(Delete(TABLE1).Where(COL < 0));
EXP(Select(COL).From(Select(COL).From(TABLE1)));
EXP(Select(COL).From(Select(COL).From(TABLE1).AsTable(TABLE2)));
EXP(Select(COL).From(TABLE1).LeftJoin(Select(COL).From(TABLE1)).On(COL.Of(TABLE1) == COLUMN1.Of(TABLE1)));
EXP(Select(COL).From(TABLE1).LeftJoin(Select(COL).From(TABLE1).AsTable(TABLE2)).On(COL.Of(TABLE1) == COLUMN1.Of(TABLE1)));
EXP(Select(TABLE1(COL, COLUMN1)).From(TABLE1));
EXP(Select(ID(ID, NAME, LASTNAME)).From(TABLE1).LeftJoinRef(TABLE2).Where(BDATE == Date(2011, 12, 9)));
EXP(Select(ID(ID, NAME, LASTNAME)).From(TABLE1).LeftJoinRef(TABLE2).On(IsNull(BDATE)).Where(BDATE == Date(2011, 12, 9)));
EXP(Select(TABLE1(SqlAll())).From(TABLE1));
EXP(Select(SqlAll().Of(TABLE1)).From(TABLE1));
EXP(Select(TABLE1(S_TABLE2())).From(TABLE1));
Vector<int> m;
for(int i = 0; i < 10; i++)
m.Add(i);
EXP(Select(ID).From(TABLE1).Where(ID == SqlSetFrom(m)));
SqlId TN("TN");
SqlId TNSIZE("TNSIZE");
EXP(
WithRecursive(TN)(ID, NAME, PARENT_ID)
.As(Select(ID, NAME, PARENT_ID).From(TREENODE).Where(IsNull(PARENT_ID))
+
Select(TREENODE(ID, NAME, PARENT_ID)).From(TREENODE, TN)
.Where(TREENODE(PARENT_ID) == TN(ID)))
.With(TNSIZE)
.As(Select(PARENT_ID,
Select(NAME).From(TREENODE).Where(ID == TN(PARENT_ID)).AsValue(),
SqlCountRows())
.From(TN)
.GroupBy(PARENT_ID))
(SelectAll().From(TNSIZE))
);
SqlId COUNT("COUNT");
EXP(
WithRecursive(TN)(ID, NAME, PARENT_ID)
.As(Select(ID, NAME, PARENT_ID).From(TREENODE).Where(IsNull(PARENT_ID))
+
Select(TREENODE(ID, NAME, PARENT_ID)).From(TREENODE, TN)
.Where(TREENODE(PARENT_ID) == TN(ID)))
.With(TNSIZE)(NAME, COUNT)
.As(Select(Select(NAME).From(TREENODE).Where(ID == TN(PARENT_ID)).AsValue(),
SqlCountRows())
.From(TN)
.GroupBy(PARENT_ID))
(Insert(TABLE1)(NAME, NAME)(COL, COUNT).From(TNSIZE))
);
EXP(
WithRecursive(TN)(ID, NAME, PARENT_ID)
.As(Select(ID, NAME, PARENT_ID).From(TREENODE).Where(IsNull(PARENT_ID))
+
Select(TREENODE(ID, NAME, PARENT_ID)).From(TREENODE, TN)
.Where(TREENODE(PARENT_ID) == TN(ID)))
.With(TNSIZE)(ID, COUNT)
.As(Select(ID,
SqlCountRows())
.From(TN)
.GroupBy(PARENT_ID))
(Delete(TREENODE).Where(ID == Select(ID).From(TNSIZE).Where(COUNT == 0)))
);
EXP(
WithRecursive(TN)(ID, NAME, PARENT_ID)
.As(Select(ID, NAME, PARENT_ID).From(TREENODE).Where(IsNull(PARENT_ID))
+
Select(TREENODE(ID, NAME, PARENT_ID)).From(TREENODE, TN)
.Where(TREENODE(PARENT_ID) == TN(ID)))
.With(TNSIZE)(ID, COUNT)
.As(Select(ID,
SqlCountRows())
.From(TN)
.GroupBy(PARENT_ID))
(Update(TABLE1)(COL, Select(COUNT).From(TNSIZE).Where(TNSIZE(ID) == TABLE1(ID)).AsValue()))
);
EXP(Temporary("TT").As(Select(NAME, LASTNAME).From(TABLE1).Where(COLUMN1 == 12)));
#ifdef GENERATE_QTF
qtf << "}}";
RichEditWithToolBar edit;
edit.SetQTF(qtf);
TopWindow win;
win.Add(edit.SizePos());
win.Run();
#endif
}
SqlExp.sch
TABLE_(TABLE1)
INT_ (ID)
STRING_ (NAME, 200) PRIMARY_KEY
STRING_ (LASTNAME, 200)
INT_ (COLUMN1)
INT_ (COL)
INT_ (SEQ)
INT_ (BDATE)
INT_ (A)
END_TABLE
TABLE_(TABLE2)
INT (ID) PRIMARY_KEY
INT_ (TABLE1_ID) REFERENCES(TABLE1)
STRING (NAME, 200)
STRING (LASTNAME, 200)
INT (BDATE)
INT_ (COLUMN2)
INT (SEQ)
END_TABLE
TABLE_(TREENODE)
INT (ID) PRIMARY_KEY
INT_ (PARENT_ID) REFERENCES(TREENODE)
STRING (NAME, 200)
END_TABLE
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