SnowConvert: Referência de conversão de scripts do Teradata para Python¶

 ## Some comments on the job
class LOADJOB:
    # DESCRIPTION 'LOAD AC_SCHEMA TABLE FROM A FILE'
    JobBody

 class JOBNAME:
    DCS_SCHEMA = """(
    PNRHEADER_ID VARCHAR(24),
    PNRLOCPERIOD VARCHAR(58),
    CRTDATE VARCHAR /*** MSC-WARNING - SSC-FDM-TD0002 - COLUMN CONVERTED FROM CLOB DATA TYPE ***/,
    REQTYP VARIANT,
    seqno INTEGER,
    resdata INTEGER,
    );"""

 def setup_tables(self):
    self.DDL_OPERATOR()
    exec(f"""DELETE FROM DATABASE1.{STAGE_DB_NAME}.EMS_AC_MASTER_STG""")

def stLOAD_FILE_NAME(self):
    exec(f"""INSERT INTO DATABASE1.CRASHDUMPS.EMP_NAME (EMP_NAME, EMP_YEARS, EMP_TEAM)
SELECT EMP_NAME, EMP_YEARS, EMP_TEAM
FROM (
{self.ol_EMP_NAME('SELECT * FROM ' + self.op_EMP_NAME() )})""")

 def main():
  _LOADJOB = LOADJOB()
  _LOADJOB.setup_tables()
  _LOADJOB.stLOAD_FILE_NAME()
  snowconvert.helpers.quit_application()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  def INSERT_TABLE(tempTableName, queryConditions = ""):
    exec(f"""INSERT INTO mydb.mytable (TABLE_ID, TABLE_DESCR, TABLE_NBR)
SELECT
   :TABLE_ID,
   :TABLE_DESCR,
   :TABLE_NBR
FROM {tempTableName} SRC {queryConditions}""")
  exec("""
    DELETE FROM
      Employee
    WHERE
      EmpNo = :EmpNo
    """)
  def UPSERT_TABLE(tempTableName, queryConditions = ""):
    exec(f"""MERGE INTO mydb.mytable TGT USING (SELECT * FROM {tempTableName} {queryConditions}) SRC ON TABLE_DESCR = :somedescription
WHEN MATCHED THEN UPDATE SET
   TABLE_ID = :TABLE_ID
WHEN NOT MATCHED THEN INSERT (TABLE_ID, TABLE_DESCR, TABLE_NBR)
VALUES (:TABLE_ID, :TABLE_DESCR, :TABLE_NBR)""")
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE. TRANSLATED BELOW **
  #.IMPORT INFILE INFILE_FILENAME LAYOUT INFILE_LAYOUT APPLY INSERT_TABLE APPLY UPSERT_TABLE Apply DELETE_TABLE
   
  snowconvert.helpers.import_file_to_temptable(fr"INFILE_FILENAME", INFILE_LAYOUT_TableName, INFILE_LAYOUT_Columns, INFILE_LAYOUT_Conditions, ',')
  INSERT_TABLE(INFILE_LAYOUT_TableName)
  UPSERT_TABLE(INFILE_LAYOUT_TableName)
  DELETE_TABLE(INFILE_LAYOUT_TableName)
  exec(f"""DROP TABLE {INFILE_LAYOUT_TableName}""")
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE.  **
  #.begin import mload tables mySampleTable1 sessions 20 ampcheck none
   
  myLayOut_TableName = "myLayOut_TEMP_TABLE"
  myLayOut_Columns = """ID VARCHAR(2), 
NAME VARCHAR(25), 
AGE VARCHAR(10)"""
  myLayOut_Conditions = """CASE
   WHEN ID = '1'
      THEN NULL
   ELSE ID
END AS ID, NAME AS NAME, AGE AS AGE"""
  def insert_data(tempTableName, queryConditions = ""):
    exec(f"""INSERT INTO mySampleTable1 (ID, NAME, AGE)
SELECT
   SRC.ID,
   SUBSTRING(SRC.NAME, 2),
   SRC.AGE
FROM {tempTableName} SRC {queryConditions}""")
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE. TRANSLATED BELOW **
  #.import infile sampleData.txt layout myLayOut apply insert_data
   
  snowconvert.helpers.import_file_to_temptable(fr"sampleData.txt", myLayOut_TableName, myLayOut_Columns, myLayOut_Conditions, ',')
  insert_data(myLayOut_TableName)
  exec(f"""DROP TABLE {myLayOut_TableName}""")

  if con is not None:
    con.close()
    con = None
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  exec("""
    INSERT INTO table1
    VALUES (1, 2)
    """)
  exec("""
    INSERT INTO table1
    VALUES (3, 4)
    """)
  exec("""
    INSERT INTO table1
    VALUES (5, 6)
    """)
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 snowconvert.helpers.configure_log("SOMEPATH.conf")

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  FIRSTLABEL()
  snowconvert.helpers.quit_application()
def FIRSTLABEL():
  exec("""
    SELECT
      *
    FROM
      MyTable1
    """)
  SECONDLABEL()
def SECONDLABEL():
  exec("""
    SELECT
      *
    FROM
      MyTable2
    """)
  exec("""
    SELECT
      *
    FROM
      MyTable3
    """)

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  exec("""
    CREATE OR REPLACE TABLE aTable (
      aColumn BYTEINT
    )
    """)
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()

  for statement in snowconvert.helpers.readrun(fr"sampfile"):
    eval(statement)
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  snowconvert.helpers.import_file(fr"inputData.dat")
  ssc_repeat_value = '*'
  ssc_max_iterations = 1

  for ssc_repeat_position in range(0, ssc_max_iterations):

    if ssc_repeat_position == 0:
      using = snowconvert.helpers.using("var_1", "CHARACTER", "var_2", "CHARACTER", "var_3", "CHARACTER", rows_to_read = ssc_repeat_value)
      exec("""
        INSERT INTO testtabu (c1)
        VALUES (:var_1)
        """, using = using)
      exec("""
        INSERT INTO testtabu (c1)
        VALUES (:var_2)
        """, using = using)
      exec("""
        INSERT INTO testtabu (c1)
        VALUES (:var_3)
        """, using = using)
      exec("""
        UPDATE testtabu
          SET
            c2 = 'X'
          WHERE
            c1 = :var_1
        """, using = using)
      exec("""
        UPDATE testtabu
          SET
            c2 = 'Y'
          WHERE
            c1 = :var_2
        """, using = using)
      exec("""
        UPDATE testtabu
          SET
            c2 = 'Z'
          WHERE
            c1 = :var_3
        """, using = using)
      exec("""
        INSERT INTO TESTTABU (c1, c2)
        VALUES ('?', '_')
        """, using = using)

  ssc_repeat_value = 10
  ssc_max_iterations = 10

  for ssc_repeat_position in range(0, ssc_max_iterations):
    exec("""
      INSERT INTO TESTTABU2
      VALUES ('John Doe', 23)
      """)
  ssc_repeat_value = 5
  ssc_max_iterations = 5

  for ssc_repeat_position in range(0, ssc_max_iterations):
    exec("""
      INSERT INTO TESTTABU2
      VALUES ('Bob Alice', 21)
      """)
  snowconvert.helpers.import_file(fr"inputData2.dat")
  using = snowconvert.helpers.using("var_1", "CHARACTER", "var_2", "CHARACTER", rows_to_read = 1)
  exec("""
    INSERT INTO testtabu (c1)
    VALUES (:var_1)
    """, using = using)
  exec("""
    INSERT INTO testtabu (c1)
    VALUES (:var_2)
    """, using = using)
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE.  **
  #SESSIONS 4
   
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE.  **
  #ERRLIMIT 25
   
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  exec("""
    DROP TABLE Error1
    """)
  exec("""
    DROP TABLE Error2
    """)
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()

 #*** Generated code is based on the SnowConvert Python Helpers version 2.0.6 ***
#** SSC-FDM-0007 - MISSING DEPENDENT OBJECTS "Error1", "Error2" **
 
import os
import sys
import snowconvert.helpers
from snowconvert.helpers import Export
from snowconvert.helpers import exec
from snowconvert.helpers import BeginLoading
con = None
def main():
  snowconvert.helpers.configure_log()
  con = snowconvert.helpers.log_on()
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE.  **
  #SESSIONS 4
   
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE.  **
  #ERRLIMIT 25
   
  exec("""
    DROP TABLE FastTable
    """)
  exec("""
    CREATE OR REPLACE TABLE FastTable (
      ID INTEGER,
      UFACTOR INTEGER,
      MISC CHAR(42)
    )
    """)
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE. TRANSLATED BELOW AS ASSIGNMENT STATEMENTS **
  #DEFINE ID (INTEGER), UFACTOR (INTEGER), MISC (CHAR(42)) FILE = FileName
   
  ssc_define_columns = "ID (INTEGER), UFACTOR (INTEGER), MISC (CHAR(42))"
  #Set file name manually if empty
  ssc_define_file = f"""FileName"""
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE.  **
  #SHOW
   
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE. TRANSLATED BELOW **
  #BEGIN LOADING FastTable ERRORFILES Error1, Error2 CHECKPOINT 10000
   
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE. TRANSLATED BELOW AS PART OF THE BEGIN LOADING TRANSLATION **
  #INSERT INTO FastTable (ID, UFACTOR, MISC) VALUES (:ID, :MISC)
   
  ssc_begin_loading_columns = "(ID, UFACTOR, MISC)"
  ssc_begin_loading_values = [":ID", ":MISC"]
  BeginLoading.import_file_to_table(f"""FastTable""", ssc_define_columns, ssc_define_file, ssc_begin_loading_columns, ssc_begin_loading_values, ",")
  #** SSC-FDM-0027 - REMOVED NEXT STATEMENT, NOT APPLICABLE IN SNOWFLAKE. END LOADING **
  #END LOADING
   
  snowconvert.helpers.quit_application()

if __name__ == "__main__":
  main()