第六十六篇、OC_Sqlite数据库操作
#import <Foundation/Foundation.h>
#import <sqlite3.h>
#define kFilename @"data.sqlite" @interface SQLService:NSObject
{
NSMutableArray *FSQLExecutioResultsMutableArray; //SQL运行结果
NSString *FErrorString; //错误信息
NSString *FDatabaseAddressString; //数据库文件存放地址
} @property (nonatomic) sqlite3 *FDatabaseSqlite; - (void)SetDatabaseAddressString:(NSString *)ANewString;
- (NSString *)GetErrorString;
- (NSMutableArray *)GetSQLExecutioResultsMutableArray; //- (BOOL)ExecuteSQL:(NSString *)ASQLString;
- (BOOL)CreateTable:(NSString *)ASQLString;
- (BOOL)InsertData:(NSString *)ASQLString;
- (BOOL)DeleteData:(NSString *)ASQLString;
- (BOOL)UpdateData:(NSString *)ASQLString;
- (BOOL)SelectData:(NSString *)ASQLString;
- (BOOL)SelectAllData:(NSString *)ASQLString;
- (BOOL)DropTable:(NSString *)ASQLString;
@end
#import "SQLService.h"
#define kLibrary [NSHomeDirectory() stringByAppendingPathComponent:@"Library"]
@interface SQLService () - (void)SetErrorString:(NSString *)ANewString;
- (void)SetSQLExecutioResultsMutableArray:(NSMutableArray *)ANewMutableArray;
- (NSString *)GetDatabaseAddressString; - (NSString *)DataFilePath;
- (BOOL)OpenDataBase; - (BOOL)CreateTable:(NSString *)ASQLString;
@end @implementation SQLService
@synthesize FDatabaseSqlite; - (id)init
{
if (![self GetSQLExecutioResultsMutableArray]) {
NSMutableArray *ASQLExecutioResultsMutableArray = [[NSMutableArray alloc] initWithCapacity:];
[self SetSQLExecutioResultsMutableArray:ASQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray release];
}
if (![self GetErrorString]) {
NSString *AErrorString = [[NSString alloc] init];
[self SetErrorString:AErrorString];
[AErrorString release];
}
return self;
} - (void)dealloc
{
[FSQLExecutioResultsMutableArray release];
[super dealloc];
} - (void)SetDatabaseAddressString:(NSString *)ANewString
{
FDatabaseAddressString = [ANewString retain];
}
- (NSString *)GetDatabaseAddressString
{
return FDatabaseAddressString;
}
- (void)SetErrorString:(NSString *)ANewString
{
if (FErrorString != ANewString) {
[FErrorString release];
FErrorString = [ANewString retain];
}
}
- (NSString *)GetErrorString
{
return FErrorString;
}
- (void)SetSQLExecutioResultsMutableArray:(NSMutableArray *)ANewMutableArray
{
if (FSQLExecutioResultsMutableArray != ANewMutableArray) {
[FSQLExecutioResultsMutableArray release];
FSQLExecutioResultsMutableArray = [ANewMutableArray retain];
}
}
- (NSMutableArray *)GetSQLExecutioResultsMutableArray
{
return FSQLExecutioResultsMutableArray;
} //获取document目录并返回数据库目录
- (NSString *)DataFilePath
{
NSString *ADataFilePathString;
ADataFilePathString = [kLibrary stringByAppendingPathComponent:kFilename];
return ADataFilePathString;
}
//创建、打开数据库
- (BOOL)OpenDataBase
{
BOOL AIsOpenSuccessedBool;
//获取数据库路径
NSString *ADataFilePathString = [self DataFilePath];
//文件管理器
NSFileManager *AFileManager = [NSFileManager defaultManager];
//判断数据库是否存在
BOOL AIsDataBaseExistBool = [AFileManager fileExistsAtPath:ADataFilePathString]; //如果数据库存在，则用sqlite3_open直接打开（不要担心，如果数据库不存在sqlite3_open会自动创建）
if (AIsDataBaseExistBool) {
// NSLog(@"Database file have already existed.");
//打开数据库，这里的[path UTF8String]是将NSString转换为C字符串，因为SQLite3是采用可移植的C(而不是
//Objective-C)编写的，它不知道什么是NSString.
const char *ATempChar = [ADataFilePathString UTF8String];
if(sqlite3_open(ATempChar, &FDatabaseSqlite) != SQLITE_OK) { //如果打开数据库失败则关闭数据库
sqlite3_close(FDatabaseSqlite);
//NSLog(@"Error: open database file failed.");
[self SetErrorString:@"Error: open database file failed."];
AIsOpenSuccessedBool = NO;
}
else {
AIsOpenSuccessedBool = YES;
}
}
//如果发现数据库不存在则利用sqlite3_open创建数据库（上面已经提到过），与上面相同，路径要转换为C字符串
else if(sqlite3_open([ADataFilePathString UTF8String], &FDatabaseSqlite) == SQLITE_OK) {
AIsOpenSuccessedBool = YES;
}
else {
//如果创建并打开数据库失败则关闭数据库
sqlite3_close(FDatabaseSqlite);
//NSLog(@"Error: create and open database file failed.");
[self SetErrorString:@"Error: create and open database file failed."];
AIsOpenSuccessedBool = NO;
}
return AIsOpenSuccessedBool;
}
/*
- (BOOL)ExecuteSQL:(NSString *)ASQLString
{
BOOL AIsSuccessedBool;
if ([self OpenDataBase]) {
sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String];
//sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -1, &AStatementSqlite3_stmt, nil);
//第一个参数跟前面一样，是个sqlite3 * 类型变量，
//第二个参数是一个 sql 语句。
//第三个参数我写的是-1，这个参数含义是前面 sql 语句的长度。如果小于0，sqlite会自动计算它的长度（把sql语句当成以\0结尾的字符串）。
//第四个参数是sqlite3_stmt 的指针的指针。解析以后的sql语句就放在这个结构里。
//第五个参数我也不知道是干什么的。为nil就可以了。
//如果这个函数执行成功（返回值是 SQLITE_OK 且 statement 不为NULL ），那么下面就可以开始插入二进制数据。 //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
NSString *AOperationString = [ASQLString substringToIndex:6];
if ([AOperationString caseInsensitiveCompare:@"create"] == NSOrderedSame) {
[self CreateTable:ASQLChar Statement:AStatementSqlite3_stmt];
}
else if ([AOperationString caseInsensitiveCompare:@"INSERT"] == NSOrderedSame) {
[self InsertData:ASQLChar Statement:AStatementSqlite3_stmt];
}
else if ([AOperationString caseInsensitiveCompare:@"delete"] == NSOrderedSame) {
[self DeleteData:ASQLChar Statement:AStatementSqlite3_stmt];
}
else if ([AOperationString caseInsensitiveCompare:@"update"] == NSOrderedSame) {
[self UpdateData:ASQLChar Statement:AStatementSqlite3_stmt];
}
else if ([AOperationString caseInsensitiveCompare:@"SELECT"] == NSOrderedSame) {
[self SelectData:ASQLChar Statement:AStatementSqlite3_stmt];
}
else if ([[AOperationString substringToIndex:4] caseInsensitiveCompare:@"drop"] == NSOrderedSame) {
[self DropTable:ASQLChar Statement:AStatementSqlite3_stmt];
}
AIsSuccessedBool = YES;
} //释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
}
*/
- (BOOL)CreateTable:(NSString *)ASQLString
{
BOOL AIsSuccessedBool=NO;
if ([self OpenDataBase]) { // NSLog(@"CreateTable%@",ASQLString); sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String]; //sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -, &AStatementSqlite3_stmt, nil); //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
//执行SQL语句
int AExecuteSQLReturnInt = sqlite3_step(AStatementSqlite3_stmt); if (AExecuteSQLReturnInt != SQLITE_DONE)
{
AErrorString = [[NSString alloc] initWithFormat:@"Create Table failed!"];
[self SetErrorString:AErrorString];
[AErrorString release];
AIsSuccessedBool = NO;
}
else {
[self SetErrorString:@"Create Table Successed"];
AIsSuccessedBool = YES;
}
}
//释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
} - (BOOL)InsertData:(NSString *)ASQLString
{
BOOL AIsSuccessedBool=NO;
if ([self OpenDataBase]) {
sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String];
//sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -, &AStatementSqlite3_stmt, nil); //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
//执行SQL语句
int AExecuteSQLReturnInt = sqlite3_step(AStatementSqlite3_stmt);
if (AExecuteSQLReturnInt == SQLITE_ERROR)
{
AErrorString = [[NSString alloc] initWithFormat:@"Insert Data failed!"];
[self SetErrorString:AErrorString];
[AErrorString release];
AIsSuccessedBool = NO;
}
else {
[self SetErrorString:@"Insert Data Successed"];
AIsSuccessedBool = YES;
}
}
//释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
} - (BOOL)DeleteData:(NSString *)ASQLString
{
BOOL AIsSuccessedBool=NO;
if ([self OpenDataBase]) {
sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String];
//sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -, &AStatementSqlite3_stmt, nil); //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
//执行SQL语句
int AExecuteSQLReturnInt = sqlite3_step(AStatementSqlite3_stmt); if (AExecuteSQLReturnInt == SQLITE_ERROR)
{
AErrorString = [[NSString alloc] initWithFormat:@"Delete Data failed!"];
[self SetErrorString:AErrorString];
[AErrorString release];
AIsSuccessedBool = NO;
}
else {
[self SetErrorString:@"Delete Data Successed"];
AIsSuccessedBool = YES;
}
}
//释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
} - (BOOL)UpdateData:(NSString *)ASQLString
{
BOOL AIsSuccessedBool=NO;
if ([self OpenDataBase]) {
sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String];
//sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -, &AStatementSqlite3_stmt, nil); //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
//执行SQL语句
int AExecuteSQLReturnInt = sqlite3_step(AStatementSqlite3_stmt); if (AExecuteSQLReturnInt == SQLITE_ERROR)
{
AErrorString = [[NSString alloc] initWithFormat:@"Update Data failed!"];
[self SetErrorString:AErrorString];
[AErrorString release];
AIsSuccessedBool = NO;
}
else {
[self SetErrorString:@"Update Data Successed"];
AIsSuccessedBool = YES;
}
}
//释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
} - (BOOL)SelectData:(NSString *)ASQLString
{
BOOL AIsSuccessedBool=NO;
if ([self OpenDataBase]) {
sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String];
//sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -, &AStatementSqlite3_stmt, nil); //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
char *ATempChar;
NSUInteger ANumberOLineDatasUInteger; //每行数据个数
NSUInteger AIndexUInteger;
NSString *ATempString;
//NSUInteger ASqliteColumnTypeUInteger; //某列数据类型
//执行SQL语句
while (sqlite3_step(AStatementSqlite3_stmt) == SQLITE_ROW) {
ANumberOLineDatasUInteger = sqlite3_column_count(AStatementSqlite3_stmt);
for (AIndexUInteger = ; AIndexUInteger < ANumberOLineDatasUInteger; AIndexUInteger++) {
ATempChar = (char*)sqlite3_column_text(AStatementSqlite3_stmt, AIndexUInteger);
if (ATempChar!=nil) {
ATempString=[[NSString alloc] initWithCString:ATempChar encoding:NSUTF8StringEncoding];
}
else {
ATempString=[[NSString alloc] initWithFormat:@""];
}
[ASQLExecutioResultsMutableArray addObject:ATempString];
[ATempString release];
}
}
AIsSuccessedBool = YES; }
//释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
}
- (BOOL)SelectAllData:(NSString *)ASQLString
{
BOOL AIsSuccessedBool=NO;
if ([self OpenDataBase]) {
sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String];
//sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -, &AStatementSqlite3_stmt, nil); //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
char *ATempChar;
NSUInteger ANumberOLineDatasUInteger; //每行数据个数
NSUInteger AIndexUInteger;
NSString *ATempString;
//NSUInteger ASqliteColumnTypeUInteger; //某列数据类型
//执行SQL语句
while (sqlite3_step(AStatementSqlite3_stmt) == SQLITE_ROW) {
ANumberOLineDatasUInteger = sqlite3_column_count(AStatementSqlite3_stmt);
NSMutableArray *ARowMutableArray=[[NSMutableArray alloc] initWithCapacity:];
for (AIndexUInteger = ; AIndexUInteger < ANumberOLineDatasUInteger; AIndexUInteger++) {
ATempChar = (char*)sqlite3_column_text(AStatementSqlite3_stmt, AIndexUInteger);
if (ATempChar!=nil) {
ATempString=[[NSString alloc] initWithCString:ATempChar encoding:NSUTF8StringEncoding];
}
else {
ATempString=[[NSString alloc] initWithFormat:@""];
}
[ARowMutableArray addObject:ATempString];
[ATempString release];
}
[ASQLExecutioResultsMutableArray addObject:ARowMutableArray];
[ARowMutableArray release];
}
AIsSuccessedBool = YES; }
//释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
} - (BOOL)DropTable:(NSString *)ASQLString
{
BOOL AIsSuccessedBool=NO;
if ([self OpenDataBase]) {
sqlite3_stmt *AStatementSqlite3_stmt;
NSString *AErrorString = nil;
NSMutableArray *ASQLExecutioResultsMutableArray = [self GetSQLExecutioResultsMutableArray];
[ASQLExecutioResultsMutableArray removeAllObjects];
const char *ASQLChar = [ASQLString UTF8String];
//sqlite3_prepare_v2 接口把一条SQL语句解析到statement结构里去. 使用该接口访问数据库是当前比较好的的一种方法
NSInteger AParseSQLReturnInteger = sqlite3_prepare_v2(FDatabaseSqlite, ASQLChar, -, &AStatementSqlite3_stmt, nil); //如果SQL语句解析出错
if(AParseSQLReturnInteger != SQLITE_OK) {
//NSLog(@"Error: Parse SQL failed");
AIsSuccessedBool = NO;
AErrorString = [[NSString alloc] initWithFormat:@"Error: %s", sqlite3_errmsg(FDatabaseSqlite)];
[self SetErrorString:AErrorString];
[AErrorString release];
}
else {
//执行SQL语句
int AExecuteSQLReturnInt = sqlite3_step(AStatementSqlite3_stmt); if (AExecuteSQLReturnInt == SQLITE_ERROR)
{
AErrorString = [[NSString alloc] initWithFormat:@"Drop Table failed!"];
[self SetErrorString:AErrorString];
[AErrorString release];
AIsSuccessedBool = NO;
}
else {
[self SetErrorString:@"Drop Table Successed"];
AIsSuccessedBool = YES;
}
}
//释放sqlite3_stmt
sqlite3_finalize(AStatementSqlite3_stmt);
//关闭数据库
sqlite3_close(FDatabaseSqlite);
}
return AIsSuccessedBool;
} @end
使用代码：
#import <Foundation/Foundation.h>
#import "SqlService/SQLService.h"
@interface OperatingTheCartTable : NSObject
{ }
/*Cart 表字段
Id
ProductId 产品ID
ProductName 产品名臣
Price 价格
Quantity 数量
ProductColor 产品颜色
ProductSize 产品尺寸
ProductSellAttributeId 产品销售属性ID
*/
+(NSInteger)GetNumberOfProduct;
+(BOOL)CreateCartTable;
+(NSMutableArray *)SelectFromCartTable;
+(NSMutableArray *)SelectFromCartTableWith:(NSInteger)AProductIdInteger;
+(BOOL)DeleteFromCartTable:(NSInteger)AIDInteger ProductSellAttributeId:(NSInteger)AProductSellAttributeIdInteger;
+(BOOL)InsertIntoCartTable:(NSInteger )AProductIdInteger ProductName:(NSString *)ANameString Price:(float )APriceFloat Quantity:(NSInteger)AQuantity ProductColor:(NSString *)AProductColor ProductSize:(NSString *)AProductSize ProductSellAttributeId:(NSInteger)AProductSellAttributeIdInteger;
+(BOOL)UpdateTheNumberOfCart:(NSInteger)AIDInteger Quantity:(NSInteger)AQuantityInteger ProductColor:(NSString *)AProductColor ProductSize:(NSString *)AProductSize ProductSellAttributeId:(NSInteger)AProductSellAttributeIdInteger;
#import "OperatingTheCartDatabase.h" #define kLibrary [NSHomeDirectory() stringByAppendingPathComponent:@"Library"]
#define KDataBaseName @"Cart.sqlite"
@implementation OperatingTheCartTable #pragma mark - 表 Cart
+(NSInteger)GetNumberOfProduct
{
NSInteger ACountInteger=;
SQLService *ASQLService=[[[SQLService alloc] init] autorelease];
NSString *ASelectString=[NSString stringWithFormat:@"select count(*) from Cart"]; [ASQLService SelectData:ASelectString];
NSMutableArray *AMutableArray=[ASQLService GetSQLExecutioResultsMutableArray];
if(AMutableArray.count <= )
{
return ;
}
ACountInteger = [[AMutableArray objectAtIndex:] integerValue];
return ACountInteger;
} //ProductSellAttributeId
+(BOOL)CreateCartTable
{
SQLService *ASQLService=[[SQLService alloc] init];
NSString *ACreateBOOKSetingTable=[NSString stringWithFormat:@"create table if not exists Cart(Id INTEGER PRIMARY KEY autoincrement,ProductId INTEGER,ProductName nvarchar(250),Price float,Quantity INTEGER,ProductColor nvarchar(250),ProductSize nvarchar(250),ProductSellAttributeId INTEGER)"];
if(![ASQLService CreateTable:ACreateBOOKSetingTable])
{
NSLog(@"创建表失败%@",[ASQLService GetErrorString]);
[ASQLService release];
return NO;
}
[ASQLService release];
return YES;
} +(NSMutableArray *)SelectFromCartTable
{
SQLService *ASQLService=[[[SQLService alloc] init] autorelease];
NSString *ASelectString=[NSString stringWithFormat:@"select * from Cart order by Id DESC"]; [ASQLService SelectAllData:ASelectString];
NSMutableArray *AMutableArray=[ASQLService GetSQLExecutioResultsMutableArray];
for (int i=; i<AMutableArray.count; i++) {
NSMutableDictionary *AMutableDictionary=[[NSMutableDictionary alloc] initWithCapacity:];
NSMutableArray *ATempMutableArray=[AMutableArray objectAtIndex:i]; [AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductId"];
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductName"];
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"Price"];
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"Quantity"];
if ([ATempMutableArray count] >= )
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductColor"];
if ([ATempMutableArray count] >= )
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductSize"];
if ([ATempMutableArray count] >= )
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductSellAttributeId"]; [AMutableArray replaceObjectAtIndex:i withObject:AMutableDictionary]; [AMutableDictionary release];
} return AMutableArray;
} //2013-10-31 11:41:57.457 CloudWork[2565:1a903] 红色,39,281
//2013-10-31 11:41:57.457 CloudWork[2565:1a903] 红色,37,278 +(NSMutableArray *)SelectFromCartTableWith:(NSInteger)AProductIdInteger
{
SQLService *ASQLService=[[[SQLService alloc] init] autorelease];
NSString *ASelectString=[NSString stringWithFormat:@"select * from Cart where ProductId=%d order by Id desc",AProductIdInteger];
[ASQLService SelectAllData:ASelectString];
NSMutableArray *AMutableArray=[ASQLService GetSQLExecutioResultsMutableArray];
for (int i=; i<AMutableArray.count; i++) {
NSMutableDictionary *AMutableDictionary=[[NSMutableDictionary alloc] initWithCapacity:];
NSMutableArray *ATempMutableArray=[AMutableArray objectAtIndex:i]; [AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductId"];
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductName"];
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"Price"];
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"Quantity"];
if ([ATempMutableArray count] >= )
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductColor"];
if ([ATempMutableArray count] >= )
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductSize"];
if ([ATempMutableArray count] >= )
[AMutableDictionary setValue:[ATempMutableArray objectAtIndex:]forKey:@"ProductSellAttributeId"]; [AMutableArray replaceObjectAtIndex:i withObject:AMutableDictionary];
NSLog(@",%@,%@,%@,%@",[AMutableDictionary valueForKey:@"Quantity"],[AMutableDictionary valueForKey:@"ProductColor"],[AMutableDictionary valueForKey:@"ProductSize"],[AMutableDictionary valueForKey:@"ProductSellAttributeId"]);
[AMutableDictionary release];
} return AMutableArray; } +(BOOL)DeleteFromCartTable:(NSInteger)AIDInteger ProductSellAttributeId:(NSInteger)AProductSellAttributeIdInteger
{
BOOL ABOOL=NO;
NSString *ADeleteString=[NSString stringWithFormat:@"delete from Cart where ProductId=%d and ProductSellAttributeId=%d",AIDInteger,AProductSellAttributeIdInteger];
SQLService *ASQLService=[[SQLService alloc] init];
if([ASQLService DeleteData:ADeleteString])
{
ABOOL=YES;
}
else {
ABOOL=NO;
}
[ASQLService release];
return ABOOL;
}
+(BOOL)InsertIntoCartTable:(NSInteger )AProductIdInteger ProductName:(NSString *)ANameString Price:(float )APriceFloat Quantity:(NSInteger)AQuantity ProductColor:(NSString *)AProductColor ProductSize:(NSString *)AProductSize ProductSellAttributeId:(NSInteger)AProductSellAttributeIdInteger
{
BOOL ABOOL=NO;
NSString *AInsertString=[NSString stringWithFormat:@"insert into Cart(ProductId,ProductName,Price,Quantity,ProductColor,ProductSize,ProductSellAttributeId) values(%d,'%@',%f,%d,'%@','%@',%d)",AProductIdInteger,ANameString,APriceFloat,AQuantity,AProductColor,AProductSize,AProductSellAttributeIdInteger];
SQLService *ASQLService=[[SQLService alloc] init];
if([ASQLService InsertData:AInsertString])
{
ABOOL=YES;
}
else {
ABOOL=NO;
}
[ASQLService release];
return ABOOL;
}
+(BOOL)UpdateTheNumberOfCart:(NSInteger)AIDInteger Quantity:(NSInteger)AQuantityInteger ProductColor:(NSString *)AProductColor ProductSize:(NSString *)AProductSize ProductSellAttributeId:(NSInteger)AProductSellAttributeIdInteger
{
BOOL ABOOL=NO;
NSString *AUpdateString=[NSString stringWithFormat:@"update Cart set Quantity=%d,ProductColor='%@',ProductSize='%@' where ProductId=%d and ProductSellAttributeId=%d",AQuantityInteger,AProductColor,AProductSize,AIDInteger,AProductSellAttributeIdInteger];
SQLService *ASQLService=[[SQLService alloc] init]; if ([ASQLService UpdateData:AUpdateString]) {
ABOOL=YES;
}
else {
ABOOL=NO;
}
[ASQLService release];
return ABOOL;
}
@end
第六十六篇、OC_Sqlite数据库操作的更多相关文章
- 《手把手教你》系列技巧篇（六十六）-java+ selenium自动化测试 - 读写excel文件 - 上篇（详细教程）
1.简介 在自动化测试,有些我们的测试数据是放到excel文件中,尤其是在做数据驱动测试的时候,所以需要懂得如何操作获取excel内的内容.由于java不像python那样有直接操作Excle文件的类 ...
- 第三百六十六节，Python分布式爬虫打造搜索引擎Scrapy精讲—elasticsearch(搜索引擎)的bool组合查询
第三百六十六节,Python分布式爬虫打造搜索引擎Scrapy精讲—elasticsearch(搜索引擎)的bool组合查询 bool查询说明 filter:[],字段的过滤,不参与打分must:[] ...
- “全栈2019”Java第六十六章：抽象类与接口详细对比
难度 初级 学习时间 10分钟 适合人群 零基础 开发语言 Java 开发环境 JDK v11 IntelliJ IDEA v2018.3 文章原文链接 "全栈2019"Java第 ...
- 我的Android六章:Android中SQLite数据库操作
今天学习的内容是Android中的SQLite数据库操作,在讲解这个内容之前小编在前面有一篇博客也是讲解了SQLite数据库的操作,而那篇博客的讲解是讲述了 如何在Window中通过DOM来操作数据库 ...
- 十分钟学会mysql数据库操作
Part1:写在最前 MySQL安装的方式有三种: ①rpm包安装 ②二进制包安装 ③源码安装 这里我们推荐二进制包安装,无论从安装速度还是用于生产库安装环境来说,都是没问题的.现在生产库一般采用My ...
- 十六、CI框架之数据库操作get用法
一.使用数据库的Get方法读取内容,如下代码: 二.数据库如下: 二.效果如下: 不忘初心,如果您认为这篇文章有价值,认同作者的付出,可以微信二维码打赏任意金额给作者(微信号:382477247)哦, ...
- 第六十四天 JS基础操作
一.分支结构 1.if语句 if基础语句 if(条件表达式){ 代码块: } // 当条件表达式结果为true,会执行代码块:反之不执行 // 条件表达式可以为普通表达式 // 0.undefined ...
- 第六十二篇、AFN3.0封装网络请求框架，支持缓存
1.网络请求 第一种实现方式: 功能:GET POST 请求 缓存逻辑: 1.是否要刷新本地缓存,不需要就直接发起无缓存的网络请求,否则直接读取本地数据 2.需要刷新本地缓存,先读取本地数据,有就返回 ...
- python【第十二篇下】操作MySQL数据库以及ORM之 sqlalchemy
内容一览: 1.Python操作MySQL数据库 2.ORM sqlalchemy学习 1.Python操作MySQL数据库 2. ORM sqlachemy 2.1 ORM简介 对象关系映射(英语: ...
随机推荐
- 栈的应用2——超级计算器（中缀与后缀表达式）C语言
输入中缀表达式输出结果(结果可以是小数,但输入必须是整数) #include<stdio.h> #include<stdlib.h> //需要两个栈,一个储存结果,一个储存运 ...
- Actions 动作集
--> 移动鼠标到指定位置(先触发onMouseOver动作) Actions action = new Actions(driver); WebElement th ...
- MySQL常用查询语句集合《转》
一查询数值型数据: SELECT * FROM tb_name WHERE sum > 100; 查询谓词:>,=,<,<>,!=,!>,!<,=>,= ...
- 基础数据结构 之 队列（python实现）
队也是编程开发中常见的一种数据结构.栈和队可用来模拟函数的递归过程.队的特点为先入先出,主要操作包括入队和出队.入队时需判断队是否已满,出队时需判断队是否为空.下面给出一个队的python实现的例子: ...
- Codeforces Gym 100637A A. Nano alarm-clocks 前缀和
A. Nano alarm-clocks Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100637/p ...
- Delphi 多文件拖放获取路径示例
unit Unit1;interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, ...
- MaterialDesignLibrary
https://github.com/navasmdc/MaterialDesignLibrary MaterialDesignLibrary.zip
- apue.h
[root@localhost unix_env_advance_prog]# cat apue.h #ifndef _APUE_H #define _APUE_H #define _XOPEN_SO ...
- strassen algorithm
the explaination that is clear in my view is from wiki.
- mysql 优化工具
explain profiling 建议提供以下信息 show table status like 'audit';show create table audit;show index from a ...