jt-mssql v1.0.18

jt-mssql

Description

This extension based on node-mssql

see tedious node-mssql for more detail.

version

1.0.6

usage

npm install jt-mssql -save

Example

Request

asyncQuery(command,params)

Call query Command by Async ( 异步  方法调用 query)

Arguments

• command (String) - T-SQL command to be executed.（执行的 sql 语句）
• params (Array/Object) - T-SQL params values （sql 语句中的参数值对象）

Params Only Support Below Formatter(params 只支持下面的数据格式)

params1 = { id: 1, name: "jack" };
params2 = [1, 2, 3, 4];
params3={id：1，schoolId:[1,2,3,4]};

Example

it("asyncQuery Test", async () => {
  const pool = await app.mssql.get("db1");
  const result = await pool
    .request()
    .asyncQuery("select TemplateId from myTable2 where id=@id", {
      id: 1
    });
  assert(result.recordset[0].TemplateId == 1);
});

asyncInsert(command?:String,params?:Array)

Call Insert Command by Async ( 异步方法调用 Insert)

Arguments

• command - T-SQL command to be executed.（执行的 sql 语句）
• params - T-SQL params values （sql 语句中的参数值对象）

Params Only Support Below Formatter (params 只支持下面的数据格式)

params1 = [{ id: 1, name: "jack" }, { id: 2, name: "mike" }];

Example

  it("asyncInsert Test", async () => {
    const pool = await app.mssql.get('db1');
    const result = await pool.request().asyncInsert(`insert into myTable2 (TemplateId) values(@TemplateId) ; select SCOPE_IDENTITY() as id`, [{
      Templateid: 1
    }]);
    assert(result.recordset[0].id !== undefined);
  });
});

Transaction

asyncBegin(isolationLevel?:obj, callback?:async Func)

Async begin Transaction (异步 方法调用 query)

Arguments

• isolationLevel - Controls the locking and row versioning behavior of TSQL statements issued by a connection. Optional. READ_COMMITTED by default. For possible values see sql.ISOLATION_LEVEL.查看 node-mssql
• callback(err) - An Async callback which is called after transaction has began;(异步回调方法)

Example

it("asyn transaction test", async () => {
  const pool = await app.mssql.get("db1");
  const transaction = pool.transaction();
  await transaction.asyncBegin(async err => {
    try {
      const result = await transaction
        .request()
        .asyncQuery(
          `insert into myTable2 (TemplateId) values(@TemplateId) ; select SCOPE_IDENTITY() as id`,
          {
            Templateid: 1
          }
        );
      console.log(result.recordset[0].id);
      assert(result.recordset[0].id !== undefined);
      const result2 = await transaction
        .request()
        .asyncQuery(
          `insert into myTable (TemplateName) values(@TemplateName) ; select SCOPE_IDENTITY() as id`,
          {
            TemplateName: "abc"
          }
        );
      assert(result2.recordset[0].id !== undefined);
      transaction.commit();
    } catch (error) {
      console.log(error);
      transaction.rollback();
    }
  });
});