在main函数中调用batchInsert函数,执行批量插入操作。 go func main() { // 连接数据库的代码(略) // 示例数据 users := []User{ {ID: 1, Name: "Alice", Age: 30}, {ID: 2, Name: "Bob", Age: 25}, // 添加更多用户数据... } // 执行批量插入 if err := batchInsert(db, users); ...
fmt.Printf("BatchInsertUsers failed, err:%v\n", err) } // 方法2 users2 := []interface{}{u1, u2, u3} err = BatchInsertUsers2(users2) if err != nil { fmt.Printf("BatchInsertUsers2 failed, err:%v\n", err) } // 方法3 users3 := []*User{&u1, &u2, &u3} err = Batch...
// copyDataInBatches 分批次复制数据 func copyDataInBatches(db *sql.DB, sourceTable, targetTable string, batchSize int, primaryKeyColumn string) error { // 获取总行数 var totalRows int err := db.QueryRow(fmt.Sprintf("SELECT COUNT(*) FROM %s", sourceTable)).Scan(&totalRows) if err !=...
AI检测代码解析 packagemainimport("database/sql""fmt"_"github.com/go-sql-driver/mysql")funcmain(){db,err:=sql.Open("mysql","user:password@tcp(localhost:3306)/dbname")iferr!=nil{panic(err.Error())}deferdb.Close()updateStmt,err:=db.Prepare("UPDATE users SET status = ? WHERE id = ?
批量新增与修改函数的实现(InsertBatch) 数据批量新增与修改操作的具体实现,两种方式在同一接口中实现。 func InsertBatch(tablename string, els []map[string]interface{}) map[string]interface{} { values := make([]interface{}, 0) sql := "INSERT INTO " + tablename ...
1. Batch Insert 参考:https://github.com/jinzhu/gorm/issues/255#issuecomment-481159929 type OwnDbstruct{*gorm.DB } func (db*OwnDb)BatchInsert(objArr []interface{}) (int64, error) {//If there is no data, nothing to do.iflen(objArr) ==0{return0, errors.New("insert a slice length ...
consts.BATCH_INSERT_NUM).Error } func (dte *DbTblEasyMerPayAccInfoRepo) FindRowsByHostDate(ctx context.Context, host_date, batch_id, bank_id string) (*sql.Rows, error) { var err error rows, err := dte.tblEasyMerPayAccInfoDao.GetSlaveDb(ctx).Where("host_date = ? and batch_id=?
(e *SmallormEngine) batchInsertData(batchData interface{}, insertType string) (int64, error) { //反射解析 getValue := reflect.ValueOf(batchData) //切片大小 l := getValue.Len() //字段名 var fieldName []string //占位符 var placeholderString []string //循环判断 for i := 0; i < ...
gravity支持mysql和mongo两种数据库,都支持三种同步模式:batch, stream, replication 代码语言:javascript 代码运行次数:0 运行 AI代码解释 mode="stream":增量同步 mode="batch":批量同步 mode="replication":firstdoa batch mode table scan,and then start stream mode automatically. ...
使用CreatebatchSize选项初始化的gorm时,所有的创建&关联 insert豆浆遵守该选项 db, err := gorm.Open(sqlite.Open("gorm.db"), &gorm.Config{ CreateBatchSize: 1000, }) db := db.Session(&gorm.Session{CreateBatchSize: 1000}) users = [5000]User{{Name: "jinzhu", Pets: []Pet{pet1, pet2, ...