116 lines
3.7 KiB
Python
116 lines
3.7 KiB
Python
import pyodbc
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import argparse
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import sys
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parser = argparse.ArgumentParser(description='Access TDengine via ODBC.')
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parser.add_argument('--DSN', help='DSN to use')
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parser.add_argument('--UID', help='UID to use')
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parser.add_argument('--PWD', help='PWD to use')
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parser.add_argument('--Server', help='Server to use')
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parser.add_argument('-C', metavar='CONNSTR', help='Connection string to use')
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args = parser.parse_args()
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a = 'DSN=%s'%args.DSN if args.DSN else None
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b = 'UID=%s'%args.UID if args.UID else None
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c = 'PWD=%s'%args.PWD if args.PWD else None
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d = 'Server=%s'%args.Server if args.Server else None
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conn_str = ';'.join(filter(None, [a,b,c,d])) if args.DSN else None
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conn_str = conn_str if conn_str else args.C
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if not conn_str:
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parser.print_help(file=sys.stderr)
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exit()
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print('connecting: [%s]' % conn_str)
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cnxn = pyodbc.connect(conn_str, autocommit=True)
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cnxn.setdecoding(pyodbc.SQL_CHAR, encoding='utf-8')
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cursor = cnxn.cursor()
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cursor.execute("drop database if exists db");
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("create database db");
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("create table db.mt (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, bin binary(10), blob nchar(10))");
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("insert into db.mt values('2020-10-13 06:44:00.123', 1, 127, 32767, 2147483647, 32769, 123.456, 789.987, 'hello', 'helloworld')")
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("insert into db.mt values(?,?,?,?,?,?,?,?,?,?)", "2020-10-13 07:06:00.234", 0, 127, 32767, 32768, 32769, 123.456, 789.987, "hel后lo".encode('utf-8'), "wo哈rlxd129")
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##cursor.execute("insert into db.mt values(?,?,?,?,?,?,?,?,?,?)", 1502535178128, 9223372036854775807, 127, 32767, 32768, 32769, 123.456, 789.987, "hel后lo".encode('utf-8'), "wo哈rlxd123");
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("""
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INSERT INTO db.mt (ts,b,v1,v2,v4,v8,f4,f8,bin,blob) values (?,?,?,?,?,?,?,?,?,?)
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""",
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"2020-12-12 00:00:00",
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'true',
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'-127',
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'-32767',
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'-2147483647',
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'-9223372036854775807',
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'-1.23e10',
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'-11.23e6',
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'abcdefghij'.encode('utf-8'),
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"人啊大发测试及abc")
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("drop database if exists db");
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("create database db");
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("create table db.t (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, bin binary(4), blob nchar(4))");
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("insert into db.t values('2020-10-13 06:44:00', 1, 127, 32767, 32768, 32769, 123.456, 789.987, 'hell', 'w我你z')")
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("create table db.v (ts timestamp, v1 tinyint, v2 smallint, name nchar(10), ts2 timestamp)")
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cursor.close()
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cursor = cnxn.cursor()
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cursor.execute("select * from db.v")
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cursor.close()
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params = [ ('2020-10-16 00:00:00.123', 19, '2111-01-02 01:02:03.123'),
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('2020-10-16 00:00:01', 41, '2111-01-02 01:02:03.423'),
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('2020-10-16 00:00:02', 57, '2111-01-02 01:02:03.153'),
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('2020-10-16 00:00:03.009', 26, '2111-01-02 01:02:03.623') ]
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cursor = cnxn.cursor()
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cursor.fast_executemany = True
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print('py:...................')
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cursor.executemany("insert into db.v (ts, v1, ts2) values (?, ?, ?)", params)
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print('py:...................')
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cursor.close()
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## cursor = cnxn.cursor()
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## cursor.execute("SELECT * from db.v where v1 > ?", 4)
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## row = cursor.fetchone()
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## while row:
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## print(row)
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## row = cursor.fetchone()
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## cursor.close()
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##
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## cursor = cnxn.cursor()
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## cursor.execute("SELECT * from db.v where v1 > ?", '5')
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## row = cursor.fetchone()
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## while row:
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## print(row)
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## row = cursor.fetchone()
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## cursor.close()
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