Script:List Schema/Table Constraints

以下脚本可以用于列出相关模式或表上的Constraints约束:

---<tfsscons.sql begin>------------------------------------------------------
SET ECHO off
REM NAME: tfsscons.sql
REM USAGE:"@path/tfsscons"
REM --------------------------------------------------------------------------
REM REQUIREMENTS:
REM SELECT permissions on dba_constraints, dba_cons_columns and
REM    dba_ind_columns.
REM --------------------------------------------------------------------------

SET ARRAYSIZE 1
SET FEEDBACK off
SET SERVEROUT on
SET PAGESIZE 66
SET NEWPAGE 6
SET LINESIZE 75
SET PAUSE off
SET VERIFY off
ACCEPT puser PROMPT 'Enter the schema name: '
ACCEPT pexcp PROMPT 'Enter the EXCEPTIONS table name for schema &puser: '
PROMPT 'NOTE: This will take some time, please wait...'

SPOOL schema_cons_&puser
DECLARE
    CURSOR cons_cur (v_userid VARCHAR2) IS
      SELECT * FROM dba_constraints
      WHERE owner = v_userid
        AND constraint_type in ('P','U','C','R')
      ORDER BY constraint_type;
    CURSOR col_cur (con_name VARCHAR2, con_owner VARCHAR2) IS
      SELECT * FROM dba_cons_columns
      WHERE owner = con_owner
        AND constraint_name = con_name
      ORDER BY position;
    CURSOR indx_cur (con_name VARCHAR2, ind_own VARCHAR2) IS
      SELECT a.*
      FROM dba_indexes a, dba_ind_columns b, dba_cons_columns c
      WHERE c.constraint_name = con_name
        AND a.owner = ind_own
        AND b.index_owner = ind_own
        AND c.owner = b.index_owner
        AND c.position = 1
        AND c.table_name = b.table_name
        AND c.column_name = b.column_name
        AND b.index_name = a.index_name;
    col_str VARCHAR2(200);
    v_user      VARCHAR2(30) := UPPER('&puser');
    v_output    VARCHAR2(480);    -- max of 16 cols at 30 chars each
    v_excp      NUMBER(1) := 0;
    v_excptab   VARCHAR2(60) := NULL;
    v_delrule   VARCHAR2(4);
    v_status    VARCHAR2(4);
    srch_cond   VARCHAR2(1000);
    v_errcode   NUMBER := 0;
    v_errmsg    varchar2(50) := ' ';
BEGIN
  DBMS_OUTPUT.ENABLE(1000000);         -- Prevents buffer exceeded error
  BEGIN
    v_excptab := UPPER('&pexcp');
    IF v_excptab IS NOT NULL THEN
      SELECT 1
        INTO v_excp
      FROM dba_objects
      WHERE owner = UPPER('&puser')
        AND   object_name = UPPER('&pexcp');
      v_excptab := 'EXCEPTIONS INTO '||LOWER('&pexcp');
    END IF;
    EXCEPTION
    WHEN NO_DATA_FOUND THEN
    DBMS_OUTPUT.PUT_LINE('Exceptions table does not exist in the schema: ');
    RAISE NO_DATA_FOUND;
    GOTO err;
  END;
  FOR c1 IN cons_cur(v_user) LOOP
    begin
      srch_cond := substr(c1.search_condition,1,length(c1.search_condition));
      -- Dont remove table constraint NOT NULL
      IF (instr(srch_cond,'NOT NULL') < 1) or
        (instr(srch_cond,'NOT NULL') IS NULL) THEN
        BEGIN
          DBMS_OUTPUT.PUT_LINE('ALTER TABLE '||C1.OWNER||'.'||C1.TABLE_NAME);
          DBMS_OUTPUT.PUT_LINE('  ADD (CONSTRAINT '||C1.CONSTRAINT_NAME);

          IF c1.constraint_type = 'P' THEN v_output := '    PRIMARY KEY (';
          ELSIF c1.constraint_type = 'R' THEN v_output := '    FOREIGN KEY (';
          ELSIF c1.constraint_type = 'U' THEN v_output := '    UNIQUE (';
          ELSIF c1.constraint_type = 'C' THEN
            v_output := '    CHECK ('||c1.search_condition||') '||v_excptab;
          END IF;

          FOR c2 IN col_cur(c1.constraint_name, c1.owner) LOOP
            IF c2.position = 1 THEN
              v_output := v_output||c2.column_name;
            ELSIF c2.position > 1 THEN
              v_output := v_output||', '||c2.column_name;
            END IF;
          END LOOP;
          v_output := v_output||')';
          DBMS_OUTPUT.PUT_LINE(v_output);
          IF c1.constraint_type = 'R' THEN
            v_output := NULL;
            FOR c3 IN col_cur(c1.r_constraint_name, c1.r_owner) LOOP
              IF c3.position = 1 THEN
                v_output := '    REFERENCES '||c3.owner||'.'||c3.table_name||'(';
                v_output := v_output||c3.column_name;
              ELSIF c3.position > 1 THEN
                v_output := v_output||', '||c3.column_name;
              END IF;
            END LOOP;
            v_output := v_output||')';
            DBMS_OUTPUT.PUT_LINE(v_output);
            v_delrule := substr(c1.delete_rule,1,2);
            IF v_delrule IS NULL THEN v_output := v_excptab ||  ' )';
            ELSIF v_delrule = 'NO' THEN v_output :=  v_excptab || ' )';
            ELSIF v_delrule = 'CA' THEN v_output := ' ON DELETE CASCADE '||v_excptab || ')';
            END IF;
            DBMS_OUTPUT.PUT_LINE(v_output);
          END IF;

          FOR c4 IN indx_cur(c1.constraint_name, c1.owner) LOOP
            IF c1.constraint_type in ('P','U') THEN
              DBMS_OUTPUT.PUT_LINE(' USING INDEX ');
              DBMS_OUTPUT.PUT_LINE('   pctfree       '||c4.pct_free);
              DBMS_OUTPUT.PUT_LINE('   initrans      '||c4.ini_trans);
              DBMS_OUTPUT.PUT_LINE('   maxtrans      '||c4.max_trans);
              DBMS_OUTPUT.PUT_LINE('   tablespace    '||c4.tablespace_name);
              DBMS_OUTPUT.PUT_LINE(' Storage (');
              DBMS_OUTPUT.PUT_LINE('   initial        '||c4.initial_extent);
              DBMS_OUTPUT.PUT_LINE('   next           '||c4.next_extent);
              DBMS_OUTPUT.PUT_LINE('   minextents'||c4.min_extents);
              DBMS_OUTPUT.PUT_LINE('   maxextents     '||c4.max_extents);
              DBMS_OUTPUT.PUT_LINE('   pctincrease    '||c4.pct_increase||') '|| v_excptab ||')');
            END IF;
          END LOOP;

          v_output := NULL;
          v_status := substr(c1.status,1,1);
          IF v_status = 'E' THEN
            v_output := ' REM This constraint '||c1.constraint_name||' was ENABLED';
          ELSIF v_status = 'D' THEN
            v_output :=' REM This constraint '||c1.constraint_name ||' was DISABLED';
          END IF;
          DBMS_OUTPUT.PUT_LINE('/ ');
          DBMS_OUTPUT.PUT_LINE(v_output);
          DBMS_OUTPUT.PUT_LINE('-------------------------------------------- ');
          DBMS_OUTPUT.PUT_LINE('  ');
        END;
      END IF;
    EXCEPTION
    WHEN no_data_found THEN
      DBMS_OUTPUT.PUT_LINE('No Data Found');
    WHEN others THEN
      v_errcode := sqlcode;
      v_errmsg := SUBSTR(sqlerrm, 1, 50);
      DBMS_OUTPUT.PUT_LINE('ERROR: '||v_errcode||': ' || v_errmsg);
      DBMS_OUTPUT.PUT_LINE(c1.constraint_name||' '||c1.constraint_type);
      DBMS_OUTPUT.PUT_LINE(c1.search_condition);
    END;
  END LOOP;
  <<err>>
  NULL;
END;
/
SPOOL off
SET PAGESIZE 14
SET FEEDBACK on
SET NEWPAGE 0
SET ARRAYSIZE 20
SET SERVEROUT off
SET LINESIZE 79
SET VERIFY on
---<tfsscons.sql end>------------------------------------------------------

---<tfstcons.sql begin>------------------------------------------------------
SET ECHO off
REM NAME: tfstcons.sql
REM USAGE:"@path/tfstcons"
REM --------------------------------------------------------------------------
REM REQUIREMENTS:
REM    SELECT permissions on dba_constraints, dba_cons_columns and
REM    dba_ind_columns.
REM --------------------------------------------------------------------------

SET ARRAYSIZE 1
SET SERVEROUT on
SET PAGESIZE 66
SET NEWPAGE 6
SET LINESIZE 75
SET PAUSE off
SET VERIFY off
SET FEEDBACK off
ACCEPT puser PROMPT 'Enter the schema name: '
ACCEPT ptab  PROMPT 'Enter the table name: '
ACCEPT pexcp PROMPT 'Enter the EXCEPTIONS table name for schema &puser: '
PROMPT 'NOTE: This will take some time, please be patient...'

SPOOL tab_cons_&ptab
DECLARE
    CURSOR cons_cur (v_userid VARCHAR2, v_tabname VARCHAR2) IS
      SELECT * FROM sys.dba_constraints
      WHERE owner = v_userid
        AND constraint_type in ('P','U','C','R')
        AND table_name = v_tabname
      ORDER BY constraint_type;
    CURSOR col_cur (con_name VARCHAR2, con_owner VARCHAR2) IS
      SELECT * FROM sys.dba_cons_columns
      WHERE owner = con_owner
        AND constraint_name = con_name
      ORDER BY position;
    CURSOR indx_cur (con_name VARCHAR2, ind_own VARCHAR2) IS
      SELECT a.*
      FROM sys.dba_indexes a, sys.dba_ind_columns b, sys.dba_cons_columns c
      WHERE c.constraint_name = con_name
        AND a.owner = ind_own
        AND b.index_owner = ind_own
        AND c.owner = b.index_owner
        AND c.position = 1
        AND c.table_name = b.table_name
        AND c.column_name = b.column_name
        AND b.index_name = a.index_name;
    col_str     VARCHAR2(200);
    v_user      VARCHAR2(30) := UPPER('&puser');
    v_tabname   VARCHAR2(30) := UPPER('&ptab');
    v_output    VARCHAR2(480);    -- max of 16 cols at 30 chars each
    v_dummy     NUMBER := 0;
    v_delrule   VARCHAR2(4);
    v_status    VARCHAR2(4);
    v_excp      NUMBER(1) := 0;
    v_excptab   VARCHAR2(60) := NULL;
    srch_cond   VARCHAR2(1000);
BEGIN
  DBMS_OUTPUT.ENABLE(1000000);         -- Prevents buffer exceeded error

  SELECT 1                             -- Check to see if the table exists
  INTO v_dummy
  FROM dba_tables
  WHERE table_name = v_tabname
  AND   owner = v_user;
  BEGIN
    v_excptab := UPPER('&pexcp');
    IF v_excptab IS NOT NULL THEN
      SELECT 1
        INTO v_excp
      FROM sys.dba_objects
      WHERE owner = UPPER('&puser')
        AND   object_name = UPPER('&pexcp');
      v_excptab := 'EXCEPTIONS INTO '||LOWER('&pexcp');
    END IF;
  EXCEPTION
    WHEN NO_DATA_FOUND THEN
    DBMS_OUTPUT.PUT_LINE('Exceptions table does not exist in your schema: ');
    RAISE NO_DATA_FOUND;
    GOTO err;
  END;
  FOR c1 IN cons_cur(v_user, v_tabname) LOOP
    begin
      srch_cond := substr(c1.search_condition,1,length(c1.search_condition));
      -- Dont remove table constraint NOT NULL
      IF (instr(srch_cond,'NOT NULL') < 1) or
        (instr(srch_cond,'NOT NULL') IS NULL) THEN
        BEGIN
          DBMS_OUTPUT.PUT_LINE('ALTER TABLE '||C1.OWNER||'.'||C1.TABLE_NAME);
          DBMS_OUTPUT.PUT_LINE('  ADD (CONSTRAINT '||C1.CONSTRAINT_NAME);

          IF c1.constraint_type = 'P' THEN v_output := '    PRIMARY KEY (';
          ELSIF c1.constraint_type = 'R' THEN v_output := '    FOREIGN KEY (';
          ELSIF c1.constraint_type = 'U' THEN v_output := ' UNIQUE (';
          ELSIF c1.constraint_type = 'C' THEN
            v_output := '    CHECK ('||c1.search_condition||') '||v_excptab;
          END IF;

          FOR c2 IN col_cur(c1.constraint_name, c1.owner) LOOP
            IF c2.position = 1 THEN
              v_output := v_output||c2.column_name;
            ELSIF c2.position > 1 THEN
              v_output := v_output||', '||c2.column_name;
            END IF;
          END LOOP;
          v_output := v_output ||')';
          DBMS_OUTPUT.PUT_LINE(v_output);
          IF c1.constraint_type = 'R' THEN
            v_output := NULL;
            FOR c3 IN col_cur(c1.r_constraint_name, c1.r_owner) LOOP
              IF c3.position = 1 THEN
                v_output := '    REFERENCES '||c3.owner||'.'||c3.table_name||'(';
                v_output := v_output||c3.column_name;
              ELSIF c3.position > 1 THEN
                v_output := v_output||', '||c3.column_name;
              END IF;
            END LOOP;
            v_output := v_output||') ';
            DBMS_OUTPUT.PUT_LINE(v_output);
            v_delrule := substr(c1.delete_rule,1,2);
            IF v_delrule IS NULL THEN v_output :=  v_excptab ||' )';
            ELSIF v_delrule = 'NO' THEN v_output := v_excptab || ' )';
            ELSIF v_delrule = 'CA' THEN v_output := ' ON DELETE CASCADE '||v_excptab || ')';
            END IF;
            DBMS_OUTPUT.PUT_LINE(v_output);
          END IF;

          FOR c4 IN indx_cur(c1.constraint_name, c1.owner) LOOP
            IF c1.constraint_type in ('P','U') THEN
              DBMS_OUTPUT.PUT_LINE(' USING INDEX ');
              DBMS_OUTPUT.PUT_LINE('   pctfree  '||c4.pct_free);
              DBMS_OUTPUT.PUT_LINE('   initrans      '||c4.ini_trans);
              DBMS_OUTPUT.PUT_LINE('   maxtrans      '||c4.max_trans);
              DBMS_OUTPUT.PUT_LINE('   tablespace    '||c4.tablespace_name);
              DBMS_OUTPUT.PUT_LINE(' Storage (');
              DBMS_OUTPUT.PUT_LINE('   initial        '||c4.initial_extent);
              DBMS_OUTPUT.PUT_LINE('   next           '||c4.next_extent);
              DBMS_OUTPUT.PUT_LINE(' minextents     '||c4.min_extents);
              DBMS_OUTPUT.PUT_LINE('   maxextents     '||c4.max_extents);
              DBMS_OUTPUT.PUT_LINE('   pctincrease    '||c4.pct_increase||') '|| v_excptab ||')');
            END IF;
          END LOOP;

          v_output := NULL;
          v_status := substr(c1.status,1,1);
          IF v_status = 'E' THEN
            v_output := ' REM This constraint '||c1.constraint_name||' was ENABLED';
          ELSIF v_status = 'D' THEN
            v_output :=' REM This constraint '||c1.constraint_name ||' was DISABLED';
          END IF;
          DBMS_OUTPUT.PUT_LINE('/ ');
          DBMS_OUTPUT.PUT_LINE(v_output);
          DBMS_OUTPUT.PUT_LINE('-------------------------------------------- ');
          DBMS_OUTPUT.PUT_LINE(' ');
        END;
      END IF;
    EXCEPTION
      WHEN no_data_found THEN
        DBMS_OUTPUT.PUT_LINE('No Data Found');
      WHEN others THEN
        DBMS_OUTPUT.PUT_LINE('Other: '||substr(sqlerrm,1,60));
        DBMS_OUTPUT.PUT_LINE(c1.constraint_name||' '||c1.constraint_type);
        DBMS_OUTPUT.PUT_LINE(c1.search_condition);
    END;
  END LOOP;
  <<err>>
  NULL;
EXCEPTION
WHEN no_data_found THEN
DBMS_OUTPUT.PUT_LINE('This table: '||v_tabname||', Does not exist or has no constraints!');
END;
/
SPOOL off
SET PAGESIZE 14
SET FEEDBACK on
SET NEWPAGE 0
SET ARRAYSIZE 20
SET SERVEROUT off
SET LINESIZE 79
SET VERIFY on
---<tfstcons.sql end>------------------------------------------------------