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package mssql;
/*
* Date: 12-3-20
*/
import gudusoft.gsqlparser.*;
import gudusoft.gsqlparser.nodes.*;
import gudusoft.gsqlparser.stmt.TAlterTableStatement;
import gudusoft.gsqlparser.stmt.mssql.TMssqlBlock;
import gudusoft.gsqlparser.stmt.mssql.TMssqlIfElse;
import junit.framework.TestCase;
public class testAlterTable extends TestCase {
public void testAddDefaultForColumn(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);
sqlparser.sqltext = "ALTER TABLE testTable ADD DEFAULT ('') FOR testColumn;";
assertTrue(sqlparser.parse() == 0);
TAlterTableStatement alterTableStatement = (TAlterTableStatement)sqlparser.sqlstatements.get(0);
assertTrue(alterTableStatement.getAlterTableOptionList().size() == 1);
TAlterTableOption ao = alterTableStatement.getAlterTableOptionList().getAlterTableOption(0);
assertTrue(ao.getOptionType() == EAlterTableOptionType.AddConstraint);
TConstraint constraint = ao.getConstraintList().getConstraint(0);
assertTrue(constraint.getConstraint_type() == EConstraintType.default_value);
assertTrue(constraint.getForObjectName().toString().equalsIgnoreCase("testColumn"));
}
public void test1(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);
sqlparser.sqltext = "IF NOT EXISTS (SELECT * FROM [dbo].[TableA] WHERE id = OBJECT_ID(N'[dbo].[TableB]') AND name = N'Foo')\n" +
"BEGIN\n" +
" ALTER TABLE [dbo].[TableB]\n" +
" ADD [Foo] [int] NULL,\n" +
" CONSTRAINT [ForeignKeyA] FOREIGN KEY([Foo])\n" +
" REFERENCES [dbo].[TableC] ([AutoID])\n" +
" ON UPDATE CASCADE\n" +
" ON DELETE CASCADE\n" +
"END";
assertTrue(sqlparser.parse() == 0);
TMssqlIfElse ifElse = (TMssqlIfElse)sqlparser.sqlstatements.get(0);
TMssqlBlock block = (TMssqlBlock)ifElse.getStmt();
assertTrue(block.getBodyStatements().get(0).sqlstatementtype == ESqlStatementType.sstaltertable);
TAlterTableStatement alterTableStatement = (TAlterTableStatement)block.getBodyStatements().get(0);
assertTrue(alterTableStatement.getAlterTableOptionList().size() == 1);
TAlterTableOption ao = alterTableStatement.getAlterTableOptionList().getAlterTableOption(0);
assertTrue(ao.getOptionType() == EAlterTableOptionType.AddColumn);
assertTrue(ao.getColumnDefinitionList().size() == 1);
TColumnDefinition cd = ao.getColumnDefinitionList().getColumn(0);
assertTrue(cd.getColumnName().toString().equalsIgnoreCase("[Foo]"));
assertTrue(cd.getConstraints().size() == 1);
TConstraint constraint = cd.getConstraints().getConstraint(0);
assertTrue(constraint.getConstraint_type() == EConstraintType.foreign_key);
assertTrue(constraint.getConstraintName().toString().equalsIgnoreCase("[ForeignKeyA]"));
// assertTrue(alterTableStatement.getTableElementList().size() == 2);
// TTableElement element0 = alterTableStatement.getTableElementList().getTableElement(0);
// TTableElement element1 = alterTableStatement.getTableElementList().getTableElement(1);
// assertTrue(element0.getType() == TTableElement.type_column_def);
// TColumnDefinition columnDefinition = element0.getColumnDefinition();
// assertTrue(columnDefinition.getColumnName().toString().equalsIgnoreCase("[Foo]"));
// assertTrue(element1.getType() == TTableElement.type_table_constraint);
// TConstraint constraint = element1.getConstraint();
// assertTrue(constraint.getConstraintName().toString().equalsIgnoreCase("[ForeignKeyA]"));
}
public void test2(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);
sqlparser.sqltext = "ALTER TABLE [dbo].[TableA] ADD\n" +
" CONSTRAINT [ConstraintA] FOREIGN KEY\n" +
" (\n" +
" [ColumnA]\n" +
" ) REFERENCES [dbo].[TableB] (\n" +
" [ColumnA]\n" +
" ) NOT FOR REPLICATION ,\n" +
" CONSTRAINT [ConstraintB] FOREIGN KEY\n" +
" (\n" +
" [ColumnB]\n" +
" ) REFERENCES [dbo].[TableC] (\n" +
" [ColumnA]\n" +
" ) ON DELETE CASCADE ON UPDATE CASCADE";
assertTrue(sqlparser.parse() == 0);
TAlterTableStatement alterTableStatement = (TAlterTableStatement)sqlparser.sqlstatements.get(0);
assertTrue(alterTableStatement.getAlterTableOptionList().size() == 1);
TTable targetTable = alterTableStatement.getTargetTable();
assertTrue(targetTable.getEffectType() == ETableEffectType.tetAlter);
TAlterTableOption ao = alterTableStatement.getAlterTableOptionList().getAlterTableOption(0);
assertTrue(ao.getOptionType() == EAlterTableOptionType.AddConstraint);
assertTrue(ao.getConstraintList().size() == 2);
TConstraint constraint1 = ao.getConstraintList().getConstraint(0);
TConstraint constraint2 = ao.getConstraintList().getConstraint(1);
assertTrue(constraint1.getConstraintName().toString().equalsIgnoreCase("[ConstraintA]"));
assertTrue(constraint2.getConstraintName().toString().equalsIgnoreCase("[ConstraintB]"));
// TColumnDefinition cd = ao.getColumnDefinitionList().getColumn(0);
// assertTrue(cd.getColumnName().toString().equalsIgnoreCase("[Foo]"));
// assertTrue(cd.getConstraints().size() == 1);
// TConstraint constraint = cd.getConstraints().getConstraint(0);
// assertTrue(constraint.getConstraint_type() == EConstraintType.foreign_key);
// assertTrue(constraint.getConstraintName().toString().equalsIgnoreCase("[ForeignKeyA]"));
// assertTrue(alterTableStatement.getTableElementList().size() == 2);
// TTableElement element0 = alterTableStatement.getTableElementList().getTableElement(0);
// TTableElement element1 = alterTableStatement.getTableElementList().getTableElement(1);
// assertTrue(element0.getType() == TTableElement.type_table_constraint);
// assertTrue(element1.getType() == TTableElement.type_table_constraint);
// TConstraint constraint = element1.getConstraint();
// assertTrue(constraint.getConstraintName().toString().equalsIgnoreCase("[ConstraintB]"));
}
public void test3(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);
sqlparser.sqltext = "ALTER TABLE FolderComment ADD CommentRSN INT NOT NULL DEFAULT NEXT VALUE FOR FolderCommentSeq";
assertTrue(sqlparser.parse() == 0);
TAlterTableStatement alterTableStatement = (TAlterTableStatement)sqlparser.sqlstatements.get(0);
assertTrue(alterTableStatement.getAlterTableOptionList().size() == 1);
TAlterTableOption ao = alterTableStatement.getAlterTableOptionList().getAlterTableOption(0);
assertTrue(ao.getOptionType() == EAlterTableOptionType.AddColumn);
// assertTrue(alterTableStatement.getTableElementList().size() == 1);
// TTableElement element0 = alterTableStatement.getTableElementList().getTableElement(0);
// assertTrue(element0.getType() == TTableElement.type_column_def);
TColumnDefinition columnDefinition = ao.getColumnDefinitionList().getColumn(0);
assertTrue(columnDefinition.getColumnName().toString().equalsIgnoreCase("CommentRSN"));
TConstraint columnConstraint = columnDefinition.getConstraints().getConstraint(0);
assertTrue(columnConstraint.getConstraint_type() == EConstraintType.notnull);
columnConstraint = columnDefinition.getConstraints().getConstraint(1);
assertTrue(columnConstraint.getConstraint_type() == EConstraintType.default_value);
TExpression defaultValue = columnConstraint.getDefaultExpression();
assertTrue(defaultValue.getExpressionType() == EExpressionType.next_value_for_t);
assertTrue(defaultValue.getSequenceName().toString().equalsIgnoreCase("FolderCommentSeq"));
}
public void testDropColumn() {
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);
sqlparser.sqltext = "ALTER TABLE F_HISTO_LETTRAGE DROP COLUMN HL_LETTRAGE;";
assertTrue(sqlparser.parse() == 0);
TAlterTableStatement alterTableStatement = (TAlterTableStatement) sqlparser.sqlstatements.get(0);
assertTrue(alterTableStatement.getAlterTableOptionList().size() == 1);
TAlterTableOption ao = alterTableStatement.getAlterTableOptionList().getAlterTableOption(0);
assertTrue(ao.getOptionType() == EAlterTableOptionType.DropColumn);
assertTrue(ao.getColumnName().toString().equalsIgnoreCase("HL_LETTRAGE"));
assertTrue(ao.getColumnNameList().getObjectName(0).toString().equalsIgnoreCase("HL_LETTRAGE"));
}
}