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sqlite学习笔记9:C语言中使用sqlite之插入数据
类别:MsSql数据库   作者:码皇   来源:程序员——在路上     点击:

前面创建了一张表,现在给他插入一些数据,插入数据跟创建表差不多,仅仅是SQL语言不一样而已,完整代码如下: include <stdio h> include <stdlib h> include "sqlite sqlite3 h" define DB_NANE "s

前面创建了一张表,现在给他插入一些数据,插入数据跟创建表差不多,仅仅是SQL语言不一样而已,完整代码如下:

    #include <stdio.h>#include <stdlib.h>#include "sqlite/sqlite3.h"#define DB_NANE "sqlite/test.db"sqlite3 *db = NULL;
    char* sql = NULL;
    char *zErrMsg = NULL;
    int ret = 0;
    typedef enum{
    false, true}
    bool;
    /*typedef int (*sqlite3_callback)(void*, Data provided in the 4th argument of sqlite3_exec()int, The number of columns in rowchar**, An array of strings representing fields in the rowchar** An array of strings representing column names);
    */static int callback(void *NotUsed, int argc, char **argv, char **azColName){
    int i = 0;
    for(i=0;
    i < argc;
    i++){
    printf("%s = %sn", azColName[i], argv[i] ? argv[i] : "NULL");
    }
    printf("n");
    return 0;
    }
    bool connectDB(){
    ret = sqlite3_open(DB_NANE, &db);
    if( ret != SQLITE_OK){
    fprintf(stderr, "Error open database: %sn", sqlite3_errmsg(db));
    sqlite3_free(zErrMsg);
    return false;
    }
    fprintf(stdout, "Successfully opened databasen");
    return true;
    }
    bool createTable(){
    /* Create SQL statement */ sql = "CREATE TABLE COMPANY(" "ID INT PRIMARY KEY NOT NULL," "NAME TEXT NOT NULL," "AGE INT NOT NULL," "ADDRESS CHAR(50)," "SALARY REAL );
    ";
    /* Execute SQL statement */ ret = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
    if( ret != SQLITE_OK ){
    fprintf(stderr, "Error SQL: %sn", zErrMsg);
    sqlite3_free(zErrMsg);
    return false;
    }
    fprintf(stdout, "Successfully table createdn");
    return true;
    }
    /*添加了此函数*/bool insertRecords(){
    /* Create SQL statement */ sql = "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY) " "VALUES (1, '
    Paul'
    , 32, '
    California'
    , 20000.00 );
    " "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY) " "VALUES (2, '
    Allen'
    , 25, '
    Texas'
    , 15000.00 );
    " "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)" "VALUES (3, '
    Teddy'
    , 23, '
    Norway'
    , 20000.00 );
    " "INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)" "VALUES (4, '
    Mark'
    , 25, '
    Rich-Mond '
    , 65000.00 );
    ";
    /* Execute SQL statement */ ret = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
    if( ret != SQLITE_OK ){
    fprintf(stderr, "SQL error: %sn", zErrMsg);
    sqlite3_free(zErrMsg);
    return false;
    }
    fprintf(stdout, "successfully records createdn");
    return true;
    }
    bool closeDB(){
    int ret = 0;
    ret = sqlite3_close(db);
    if ( ret == SQLITE_BUSY ){
    return false;
    }
    return true;
    }
    int main(int argc, char* argv[]){
    connectDB();
    /*createTable();
    */ insertRecords();
    closeDB();
    return 0;
    }
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