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Select
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SELECT column_name(s) from table_name
 
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SELECT select_list
[ INTO new_table ]
from table_source
[ WHERE search_condition ]
[ GROUP BY group_by_expression ]
[ HAVING search_condition ]
[ ORDER BY order_expression [ ASC | DESC ] ]
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 “Persons” ±íÖеÄÊý¾ÝÓÐ
LastName
FirstName
Address
City
Hansen
Ola
Timoteivn 10
Sandnes
Svendson
Tove
Borgvn 23
Sandnes
Pettersen
Kari
Storgt 20
Stavanger
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SELECT LastName,FirstName from Persons
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LastName
FirstName
Hansen
Ola
Svendson
Tove
Pettersen
Kari
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SELECT * from Persons
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LastName
FirstName
Address
City
Hansen
Ola
Timoteivn 10
Sandnes
Svendson
Tove
Borgvn 23
Sandnes
Pettersen
Kari
Storgt 20
Stavanger
 
 
 
Where
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SELECT column from table WHERE column condition value
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´Ó” Persons”±íÖÐÑ¡³öÉú»îÔÚ” Sandnes” µÄÈË
SELECT * from Persons WHERE City='Sandnes'
 "Persons" ±íÖеÄÊý¾ÝÓÐ:
LastName
FirstName
Address
City
Year
Hansen
Ola
Timoteivn 10
Sandnes
1951
Svendson
Tove
Borgvn 23
Sandnes
1978
Svendson
Stale
Kaivn 18
Sandnes
1980
Pettersen
Kari
Storgt 20
Stavanger
1960
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LastName
FirstName
Address
City
Year
Hansen
Ola
Timoteivn 10
Sandnes
1951
Svendson
Tove
Borgvn 23
Sandnes
1978
Svendson
Stale
Kaivn 18
Sandnes
1980
 
 
 
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/* °üº¬CÍ·Îļþ */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/* °üº¬SQLCAÍ·Îļþ */
EXEC SQL INCLUDE sqlca;
EXEC SQL INCLUDE sqlda;
int main()
{
    EXEC SQL BEGIN DECLARE SECTION;
    int  money;
    ......
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