下载代码安装三步走:
./configure // ./configure --help查看安装参数设置,学习configure的配置,明白安装后include、lib、bin等文件的位置 make make install
学习SQL基本语法,各个 数据库基本相同http://www.w3cschool.cc/sqlite/sqlite-tutorial. html
常用函数:
int sqlite3_open( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb /* OUT: SQLite db handle */ ); typedef int (*sqlite3_callback)( void*, /* Data provided in the 4th argument of sqlite3_exec() */ int, /* The number of columns in row */ char**, /* An array of strings representing fields in the row */ char** /* An array of strings representing column names */ ); int sqlite3_exec( sqlite3*, /* An open database */ const char *sql, /* SQL to be eva luated */ int (*callback)(void*,int,char**,char**), /* Callback function */ void *, /* 1st argument to callback */ char **errmsg /* Error msg written here */ ); int sqlite3_close(sqlite3*);
例子:
#include#include #include #define DB_FILENAME /home/suo/Desktop/sqlite/datadir/sqlite.db static int flag = 0; static int callback(void *userData, int columnNum, char **columnText, char **columnName) { int index; if (userData && !flag++) { fprintf(stdout, ---------%s------ , (const char*)userData); for (index=0; index
对应Makefile:
#! /usr/make rm=/bin/rm -f CC = gcc DEFS = PROGNAME = testsqlite INCLUDES = -I /home/suo/Desktop/sqlite/include DEFINES += $(INCLUDES) $(DEFS) CFLAGS = $(DEFINES) -g -Wall -O2 LDFLAGS = SRCS = testsqlite.c OBJS = testsqlite.o LIBS = -L./lib -lsqlite3 .cpp.o: $(rm) $@ $(CC) $(CFLAGS) -c $*.cpp all: $(PROGNAME) $(PROGNAME) : $(OBJS) $(CC) $(CFLAGS) -o $(PROGNAME) $(OBJS) $(LDFLAGS) $(LIBS) clean: $(rm) $(OBJS) $(PROGNAME) core *~
执行结果:
Opened database successfully Table created successfully Records created successfully ---------SELECT * FROM COMPANY;------ ID NAME AGE ADDRESS SALARY 1 Paul 32 California 20000.0 2 Allen 25 Texas 15000.0 3 Teddy 23 Norway 20000.0 4 Mark 25 Rick-Mond 65000.0 Select records successfully