forked from docs/doc-exports
Ru, Li Yi
4b09a03a51
Reviewed-by: Wagner, Fabian <fabian.wagner@t-systems.com> Co-authored-by: Ru, Li Yi <liyiru7@huawei.com> Co-committed-by: Ru, Li Yi <liyiru7@huawei.com>
17 lines
1.2 KiB
HTML
17 lines
1.2 KiB
HTML
<a name="ddm_08_0027"></a><a name="ddm_08_0027"></a>
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<h1 class="topictitle1">HINT- ALLOW_ALTER_RERUN</h1>
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<div id="body1601175461682"><p id="ddm_08_0027__p105101355135815"><strong id="ddm_08_0027__b2254121020131">Command Format:</strong></p>
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<p id="ddm_08_0027__p3261131171814"><strong id="ddm_08_0027__b191721064211">/*+ allow_alter_rerun=true*/</strong><em id="ddm_08_0027__i13371181310215"><ALTER TABLE></em></p>
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<p id="ddm_08_0027__p19849152614011"><strong id="ddm_08_0027__b3665249164719">Description:</strong></p>
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<p id="ddm_08_0027__p108481426502">Using this hint ensures that commands can be repeatedly executed, and no error is reported. This hint supports the following ALTER TABLE statements: ADD COLUMN, MODIFY COLUMN, DROP COLUMN, ADD INDEX, DROP INDEX, CHANGE COLUMN, ADD PARTITION, and DROP PARTITION.</p>
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<p id="ddm_08_0027__p289118391815">Example:</p>
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<p id="ddm_08_0027__p12437315131617"><strong id="ddm_08_0027__b11839326920">/*+ allow_alter_rerun=true*/ALTER TABLE aaa_tb ADD schoolroll varchar(128) not null comment 'Enrollment data'</strong></p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="ddm_08_0002.html">Supported SQL Statements</a></div>
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</div>
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</div>
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