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div.Section0{page:Section0;}</style></head><body style="tab-interval:36pt; " ><!--StartFragment--><div class="Section0" ><p class=p0 style="margin-bottom:8.7000pt; margin-top:8.7000pt; text-autospace:ideograph-other; " ><span><a></a></span><span style="mso-spacerun:'yes'; font-weight:bold; font-size:15.5000pt; font-family:'Times New Roman'; " > </span><span style="mso-spacerun:'yes'; font-weight:bold; font-size:15.5000pt; font-family:'宋体'; " >第13章:SQL语句语法</span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-bottom:5.0000pt; margin-top:5.0000pt; text-autospace:ideograph-other; " ><span style="mso-spacerun:'yes'; font-weight:bold; font-size:10.5000pt; font-family:'宋体'; " >目录</span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#data-definition" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1. </span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >数据定义语句</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#alter-database" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.1. ALTER DATABASE</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#alter-table" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.2. ALTER TABLE</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#create-database" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.3. CREATE DATABASE</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#create-index" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.4. CREATE INDEX</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#create-table" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.5. CREATE TABLE</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#drop-database" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.6. DROP DATABASE</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#drop-index" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.7. DROP INDEX</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#drop-table" ><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'Times New Roman'; " >13.1.8. DROP TABLE</span><span style="mso-spacerun:'yes'; color:rgb(0,0,255); text-decoration:underline ;font-size:10.5000pt; font-family:'宋体'; " >语法</span></a></span><span style="mso-spacerun:'yes'; font-size:10.0000pt; font-family:'Times New Roman'; " ><o:p></o:p></span></p><p class=p0 style="margin-left:18.0000pt; margin-bottom:0pt; margin-top:0pt; text-autospace:ideograph-other; " ><span><a href="D:/张玉敬/MYSQL5.1学习资料/sql-syntax.html#rename-table" ><span