如何在shell腳本中運行SQL

Question

如何在設置變量時在 shell 腳本中運行 SQL 命令？ 我試過這種方法，它沒有執行命令，它認為命令只是一個字符串。

#!/bin/ksh
variable1=`sqlplus -s username/pw@oracle_instance <<EOF
SET PAGESIZE 0 FEEDBACK OFF VERIFY OFF HEADING OFF ECHO OFF
select count(*) from table;
EXIT;
EOF`
if [ -z "$variable1" ]; then
  echo "No rows returned from database"
  exit 0
else
  echo $variable1
fi

Answer 1

#!/bin/ksh
variable1=$( 
echo "set feed off
set pages 0
select count(*) from table;
exit
"  | sqlplus -s username/password@oracle_instance
)
echo "found count = $variable1"

Answer 2

您可以使用heredoc 。 例如從提示：

$ sqlplus -s username/password@oracle_instance <<EOF
set feed off
set pages 0
select count(*) from table;
exit
EOF

所以sqlplus會將EOF標記之前的所有內容都作為標准輸入使用。

Answer 3

也許回答為時已晚，但是有一個有效的代碼：

sqlplus -s "/ as sysdba" << EOF
    SET HEADING OFF
    SET FEEDBACK OFF
    SET LINESIZE 3800
    SET TRIMSPOOL ON
    SET TERMOUT OFF
    SET SPACE 0
    SET PAGESIZE 0
    select (select instance_name from v\$instance) as DB_NAME,
           file_name
      from dba_data_files
     order by 2;

Answer 4

sqlplus -s /nolog <<EOF
whenever sqlerror exit sql.sqlcode;
set echo on;
set serveroutput on;

connect <SCHEMA>/<PASS>@<HOST>:<PORT>/<SID>;

truncate table tmp;

exit;
EOF

Answer 5

代碼

PL_CONNECT_STRING="$DB_USERNAME/$DB_PASSWORD@$DB_SERVICE"

OUTPUT=$(sqlplus -s $PL_CONNECT_STRING <<-END-OF-SQL
           select count(*) from table;
exit;
END-OF-SQL)
echo "COMPLETED GATHER STATS $OUTPUT";

說明：

PL_CONNECT_STRING攜帶數據庫用戶名、密碼和服務名

sqlplus 用於連接帶有PL_CONNECT_STRING詳細信息的數據庫

END-OF-SQL標記包含您要執行的查詢

echo用於打印查詢的輸出

注意：您可以在END-OF-SQL標簽內提供多個 Query，因此它對批處理執行也很有用