一：sqoop腳本解析。

#！/bin/sh
mysqlHost=$1
mysqlUserName=$2
mysqlUserPass=$3
mysqlDbName=$4
sql=$5
split=$6
target=$7
hiveDbName=$8
hiveTbName=$9
partFieldName=${10}
inputDate=${11}echo ${mysqlHost}
echo ${mysqlUserName}
echo ${mysqlUserPass}
echo ${mysqlDbName}
echo ${sql}
echo ${split}
echo ${target}
echo ${hiveDbName}
echo ${hiveTbName}
echo ${partFieldName}
echo ${inputDate}sqoop import "-Dorg.apache.sqoop.splitter.allow_text_splitter=true" \
--connect jdbc:mysql://${mysqlHost}/${mysqlDbName}?tinyInt1isBit=false \
--username ${mysqlUserName} \
--password ${mysqlUserPass} \
--query "${sql}" \
--split-by ${split}  \
--target-dir ${target}  \
--hive-overwrite \
--delete-target-dir \
--fields-terminated-by '\t' \
--null-string "" \
--hive-import \
--null-non-string "false" \
--hive-database ${hiveDbName} \
--hive-table ${hiveTbName} \
--hive-drop-import-delims \
--hive-partition-key ${partFieldName} \
--hive-partition-value ${inputDate}

1. 新增加三個參數

   1. –query “${sql}” \ 這個參數添加對應表的sql語句。注意結尾必須添加 $CONDITIONS ，必須添加where 條件，如果沒有where條件，寫成where 1=1。案例如下：
      "select id,key_id,key_type,'' as encryption_cert_chain,device_type,account_id_hash,user_identifier,user_id,request_id,device_id,vehicle_id,vehicle_identifier,device_info,device_oem_id,key_data,import_immobilizer_token_request_data,friendly_name,digital_key_status,digital_key_status_in_vehicle,digital_key_status_in_device,key_valid_from,key_valid_to,shared_keys,shareable_keys,manufacturer,state_in_vehicle,state_in_device,key_status_for_vehicle,'' as device_enc_public_key,'' as digital_key_public_key,'' as digital_key_cert,'' as instance_ca_cert,entitlement,rights,slot_id,protocol_type,group_identifier,verify_result,deleted,create_time,update_time,fsn,action_type from kts_key where 1=1 and \$CONDITIONS"

   2. –split-by ${split} \ 這個參數是切分數據的分割字段，一般來講是mysql的主鍵。

   3. –target-dir ${target} \ 這個參數指一個路徑。可以隨意指定一個目錄,

二：命令。

  sh  test.sh 99.99.99.99:3306 \
bigdata 123222 ssss  "select  id,key_id,key_type,'' as encryption_cert_chain,device_type,account_id_hash,user_identifier,user_id,request_id,device_id,vehicle_id,vehicle_identifier,device_info,device_oem_id,key_data,import_immobilizer_token_request_data,friendly_name,digital_key_status,digital_key_status_in_vehicle,digital_key_status_in_device,key_valid_from,key_valid_to,shared_keys,shareable_keys,manufacturer,state_in_vehicle,state_in_device,key_status_for_vehicle,'' as device_enc_public_key,'' as digital_key_public_key,'' as digital_key_cert,'' as instance_ca_cert,entitlement,rights,slot_id,protocol_type,group_identifier,verify_result,deleted,create_time,update_time,fsn,action_type from kts_key where 1=1 and  \$CONDITIONS"  id "/tmp/test" ods ods_okp p_dt 2023-08-15